78=3x+2(-5x+18)

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Solution for 78=3x+2(-5x+18) equation:


Simplifying
78 = 3x + 2(-5x + 18)

Reorder the terms:
78 = 3x + 2(18 + -5x)
78 = 3x + (18 * 2 + -5x * 2)
78 = 3x + (36 + -10x)

Reorder the terms:
78 = 36 + 3x + -10x

Combine like terms: 3x + -10x = -7x
78 = 36 + -7x

Solving
78 = 36 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
78 + 7x = 36 + -7x + 7x

Combine like terms: -7x + 7x = 0
78 + 7x = 36 + 0
78 + 7x = 36

Add '-78' to each side of the equation.
78 + -78 + 7x = 36 + -78

Combine like terms: 78 + -78 = 0
0 + 7x = 36 + -78
7x = 36 + -78

Combine like terms: 36 + -78 = -42
7x = -42

Divide each side by '7'.
x = -6

Simplifying
x = -6

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