5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
Simplify.
-15x - 10 - x + 3 = -16x - 20 + 13
Add like terms.
(-15x - x) + (-10 + 3) = -16x + (-20 + 13)
Simplify.
-16x + (-7) = -16x + (-7)
Get rid of parenthesis.
-16x - 7 = -16x - 7
Now, since we're simply just trying to find the value of "x," we must isolate x.
So, add 16x to both sides.
-16x + 16x - 7 = -7
Then, add 7 to both sides.
-16x + 16x = -7 + 7
Simplify.
0 = 0
Therefore, all real numbers are solutions (:
~Hope I helped!~