15=-3(2x+1)+7x

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Solution for 15=-3(2x+1)+7x equation:


Simplifying
15 = -3(2x + 1) + 7x

Reorder the terms:
15 = -3(1 + 2x) + 7x
15 = (1 * -3 + 2x * -3) + 7x
15 = (-3 + -6x) + 7x

Combine like terms: -6x + 7x = 1x
15 = -3 + 1x

Solving
15 = -3 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + -1x = -3 + 1x + -1x

Combine like terms: 1x + -1x = 0
15 + -1x = -3 + 0
15 + -1x = -3

Add '-15' to each side of the equation.
15 + -15 + -1x = -3 + -15

Combine like terms: 15 + -15 = 0
0 + -1x = -3 + -15
-1x = -3 + -15

Combine like terms: -3 + -15 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18

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