Solve these equations?

Question

-3x+2=10

3(2+a)-5a=a+10

Answer 1

1 -3x + 2 = 10

You have to isolate the x.  First, subtract 2 from both sides.

-3x = 8

Now, divide both sides by -3.

x = -8/3

Check your answer by substituting -8/3 for x.

-3(-8/3) + 2 = 24/3 + 2 = 8 + 2 = 10.

#2 3(2+a) - 5a = a + 10

Here you have multiple variables (a).  Work on getting them all to one side, then simplify.  First, get rid of those parentheses and simplify it a bit.

3(2) + 3(a) - 5a = a + 10

6 + 3a - 5a = a + 10

6 + a(3 - 5) = a + 10

6 - 2a = a + 10

Let's put all of the variables on the right side of the equation.  You can do either side.  One way is to add 2a to both sides.

6 - 2a + 2a = a + 2a +10

6 = 3a + 10

Now, subtract 10 from both sides, then divide both sides by 3.

6-10 = 3a + 10 - 10

-4 = 3a

-4/3 = a

Finally, check your answer through substitution.

3(2+(-4/3)) - 5(-4/3) = (-4/3) + 10  (BE CAREFUL WITH NEGATIVES)

3(2/3) + 20/3 = 26/3

6/3 + 20/3 = 26/3

26/3 = 26/3

Answer 2

1. -3x+2=10 is +65

2. =5x6+7-4x3=12-

i asked by Babalooshka and she said this was this answer. im not shure though.  

Answer 3

Do your own homework you lazy git

Answer 4

3(2+a)-5a=a+10

6+3a-5a=a+10

6-2a=a+10

-2a=a+4

a=4

am pretty sure datz deh answer lol

Answer 5

-3x+2=10

-3x=10-2

-3x=8

x=8/-3

3(2+a)-5a=a+10

6+3a-5a-a=10

-3a=10-6

a=4/-3