Question

4(5+2x)-5=3(3x+7)

Answer 1

4(5 + 2x) - 5 = 3(3x + 7) --- distribute through the parenthesis
20 + 8x - 5 = 9x + 21
15 + 8x = 9x + 21 --- subtract 9x from both sides
15 + 8x - 9x = 21 --- subtract 15 from both sides
8x - 9x = 21 - 15 -- combine like terms
-x = 6
x = -6

Answer 2

you are good man

Answer 3

check...
4(5 + 2(-6) - 5 = 3(3(-6) + 7)
4(5 - 12) - 5 = 3(-18 + 7)
4(-7) - 5 = 3(-11)
-28 - 5 = -33
-33 = -33 (correct)

yep...answer is -6

Answer 4

yeah x=-6