What is 5(x-10) +3 (x+3)?

Question

I'm confused. Going into Year 8 and have Level 7 work :P

Answer 1

If you have to solve for the x, this is the answer...

5(x-10) + 3(x+3)

5x - 50 + 3x + 9

8x - 41

8x = 41

x = 41/8

10 points please...

Answer 2

okay you half to multiply first.   5(x-10) + 3 (x+3) = 5x - 50 + 3x + 9

now you half to combine like terms.   5x + 3x = 8x  and -50 + 9 = -41

so your answer is 8x - 41

Answer 3

first of all you expand the formula.

1.5x-50+3x+9         if you don't know how to expand you take the number outside the bracket and times it with each letter or number.

2.8x-41 Now this is the tricky bit. You add the same numbers with the same numbers so 5x+3x is 8x. Now since its -50+9 the answer will be -41 because a two different symbols means you take away it which means getting it towards 0.

Answer 4

When answering a problem with parenthesis always do the parenthesis  first.

5(x-10) you would do first, and you multiply the number outside the parenthesis with the numbers/ factors inside the parenthesis.

5(x-10)=

5x -50 is the first part.

The - in front of the 10 means it will be a negative number.

+3(x+3)=

3x+9

now put the two parts together

5x -50 + 3x+9=

add the common together. The x's are common and the numbers are common.

5x+ 3x =8x and -50+9= -41

the answer is

5(x-10) + 3(x +3)=

8x -41

The bigger number is a negative so you subtract the positive from the negative and get the proper answer which will be a negative number.

Hope that helped

Answer 5

it is nothing to be confused about, you see

   5(x-10) +3 (x+3)

  

5(x-10) is actually 5multiply x - 5multiply negative10 same goes to the back numbers and remember to make sure when the number will change in to negative when multiply............. Good luck!!!!