How do i find x in this:3(x+2)+2(x+1)=23 ?

Question

How do i find the x in this equation : 3(x+2)+2(x+1)=23

and please tell me how and whats the nasewr , i need it desperately

Answer 1

open it up

3x+  6+ 2z+2 =23

5x + 8 = 23

5x = 15

x= 3

AM

Answer 2

you develop

3(x+2) +2*(x+1) = 3x+6+2x+2=23

5x+8=23

5x=15

x=3

proof 3*(3+2)+2(3+1) = 15+8=23

Answer 3

3(x+2)+2(x+1)=23

3x+6+2x+2=23

5x=23-6-2

5x=15

x=3

Answer 4

first you would get rid out the brackets making it

3x+6+2x+1=23

then add the like terms..

5x+7=23

then put the 7 on the other side

5x=23-7

you minus the 7 because you are moving it to the other side of the equals sign

then it would be

5x=16

then you move the 5

x=16 divided by 5

x=3.2

i just finished a chapter on this and got 100% in the test so i know that the answer is...x=3.2

Answer 5

Hi,

First, use the Distributive Property to eliminate parentheses.

3(x+2) + 2(x+1) = 23

3x + 6 + 2x + 2 = 23

Combine like terms on the left.

5x + 8 = 23

Subtract 8 on both sides.

5x = 15

Divide by 5.

x = 3 <==ANSWER

I hope that helps!! :-)

Answer 6

3(x+2)+2(x+1)=23

3x+6+2x+2=23

5x+8=23

5x=23-8

5x=15

divide both sides by 5

x=3

try to check it...substitute the value of x which is 3

3(x+2)+2(x+1)=23

3(3+2)+2(3+1)=23

9+6+6+2=23

23=23

so got it right... get it??

hope it helps.. ^^,

Answer 7

multiply what's in the brackets by the number next to it

You'll end up with (3x+6) and (2x+2) = 23

Then just add the numbers together, You should have 3x+6+2x+2=23

which equals 5x+8=23.

Then you have to get rid of the 8 by taking it away from both sides of the = sign. so you go: 5x+8-8=23-8

which equals 5x=15

Then you get rid of the 5 by dividing each side of the = sign. so you go: (5x)/5= 15/5

which equals x=3

Answer 8

3x+6+2x+2=23

5x+8=23

5x=15

x=3

Answer 9

In the equation 3(x + 2) +2(x + 1) = 23

Recall that 3(x + 2) means three times every term within the parenthesis, or 3x + 6.

Also, +2(x + 1) means plus two times everything within the parenthesis, or 2x + 2.

Thus, the equation now says 3x + 6 +2x + 2 = 23.

Combining like terms on the left we ge: 5x + 8 = 23. Since we’re looking for x, first  we’ll subtract 8 from both sides. Now, we have 5x = 15. Finally, divide both sides by 5, and we we get x = 3.

Sorry about the verbose, i.e. wordy explanation.

Substitute x for three in the original equation, due the arithmetic and, it works. No other number will.

Answer 10

3x + 6 + 2x + 2 = 23

5x + 8 = 23

5x = 15

x = 3

Not too late I hope !

Answer 11

3x +6 +2x+2=23

5x=15

x=3

multiply it out. add common multiples.

mine is correct. The r****d above doesn't know what they're doing.

Answer 12

Then,3x+6+2x+2=23,5x-15=0,x=3

Answer 13

1) distribute 3 to (x+2), distribute 2 to (x+1)

3x+6+2x+2=23

2) combine like terms

5x+8=23

3) subtract 8 from both sides

5x=15

4) divide by 5

x=3