40=6(5+3x)+7(6-2x)

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Solution for 40=6(5+3x)+7(6-2x) equation:


Simplifying
40 = 6(5 + 3x) + 7(6 + -2x)
40 = (5 * 6 + 3x * 6) + 7(6 + -2x)
40 = (30 + 18x) + 7(6 + -2x)
40 = 30 + 18x + (6 * 7 + -2x * 7)
40 = 30 + 18x + (42 + -14x)

Reorder the terms:
40 = 30 + 42 + 18x + -14x

Combine like terms: 30 + 42 = 72
40 = 72 + 18x + -14x

Combine like terms: 18x + -14x = 4x
40 = 72 + 4x

Solving
40 = 72 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
40 + -4x = 72 + 4x + -4x

Combine like terms: 4x + -4x = 0
40 + -4x = 72 + 0
40 + -4x = 72

Add '-40' to each side of the equation.
40 + -40 + -4x = 72 + -40

Combine like terms: 40 + -40 = 0
0 + -4x = 72 + -40
-4x = 72 + -40

Combine like terms: 72 + -40 = 32
-4x = 32

Divide each side by '-4'.
x = -8

Simplifying
x = -8

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