131=15x+10(x+3)+13(x-1)

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Solution for 131=15x+10(x+3)+13(x-1) equation: 


Simplifying
131 = 15x + 10(x + 3) + 13(x + -1)

Reorder the terms:
131 = 15x + 10(3 + x) + 13(x + -1)
131 = 15x + (3 * 10 + x * 10) + 13(x + -1)
131 = 15x + (30 + 10x) + 13(x + -1)

Reorder the terms:
131 = 15x + 30 + 10x + 13(-1 + x)
131 = 15x + 30 + 10x + (-1 * 13 + x * 13)
131 = 15x + 30 + 10x + (-13 + 13x)

Reorder the terms:
131 = 30 + -13 + 15x + 10x + 13x

Combine like terms: 30 + -13 = 17
131 = 17 + 15x + 10x + 13x

Combine like terms: 15x + 10x = 25x
131 = 17 + 25x + 13x

Combine like terms: 25x + 13x = 38x
131 = 17 + 38x

Solving
131 = 17 + 38x

Solving for variable 'x'.

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

Add '-38x' to each side of the equation.
131 + -38x = 17 + 38x + -38x

Combine like terms: 38x + -38x = 0
131 + -38x = 17 + 0
131 + -38x = 17

Add '-131' to each side of the equation.
131 + -131 + -38x = 17 + -131

Combine like terms: 131 + -131 = 0
0 + -38x = 17 + -131
-38x = 17 + -131

Combine like terms: 17 + -131 = -114
-38x = -114

Divide each side by '-38'.
x = 3

Simplifying
x = 3

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