Question

Smh helppppp.........

Answer 1

for number 5, x=-5

for number 8, x=-2

Answer 2

For 2x + x = 15:

When adding Xs, you add the coefficient, or the number in front of x.

2x + x = 3x (Think of x as 1x.)

3x = -15

What we're going to do is divide both sides by 3.

3x ÷ 3 = x

-15 ÷ 3 = -5

x = -5

For x + 3 = 4x + 9:

First, we will subtract x from both sides:

3 = 3x + 9

Now we'll subtract 9 from both sides:

-6 = 3x

To get x by itself, we will divide both sides by 3.

-2 = x

Hope I could help!