85=5x+5(x+3)

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Solution for 85=5x+5(x+3) equation:


Simplifying
85 = 5x + 5(x + 3)

Reorder the terms:
85 = 5x + 5(3 + x)
85 = 5x + (3 * 5 + x * 5)
85 = 5x + (15 + 5x)

Reorder the terms:
85 = 15 + 5x + 5x

Combine like terms: 5x + 5x = 10x
85 = 15 + 10x

Solving
85 = 15 + 10x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-10x' to each side of the equation.
85 + -10x = 15 + 10x + -10x

Combine like terms: 10x + -10x = 0
85 + -10x = 15 + 0
85 + -10x = 15

Add '-85' to each side of the equation.
85 + -85 + -10x = 15 + -85

Combine like terms: 85 + -85 = 0
0 + -10x = 15 + -85
-10x = 15 + -85

Combine like terms: 15 + -85 = -70
-10x = -70

Divide each side by '-10'.
x = 7

Simplifying
x = 7

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