Answer:
x=9
Step-by-step explanation:
5x+3(x-4)=60
Distribute the 3
5x+3*x -3*4 = 60
5x+3x-12 = 60
Combine like terms
8x -12 =60
Add 12 to each side
8x-12 +12 = 60 +12
8x = 72
Divide by 8
8x/8 = 72/8
x = 9
Expand
5x + 3x - 12 = 60
Simplify 5x + 3x - 12 to 8x - 12
8x - 12 = 60
Add 12 to both sides
8x = 60 + 12
Simplify 60 + 12 to 72
Divide both sides by 8
x = 72/8
Simplify 72/8 to 9
