5x-7(3x-15)=-87

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Solution for 5x-7(3x-15)=-87 equation:


Simplifying
5x + -7(3x + -15) = -87

Reorder the terms:
5x + -7(-15 + 3x) = -87
5x + (-15 * -7 + 3x * -7) = -87
5x + (105 + -21x) = -87

Reorder the terms:
105 + 5x + -21x = -87

Combine like terms: 5x + -21x = -16x
105 + -16x = -87

Solving
105 + -16x = -87

Solving for variable 'x'.

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

Add '-105' to each side of the equation.
105 + -105 + -16x = -87 + -105

Combine like terms: 105 + -105 = 0
0 + -16x = -87 + -105
-16x = -87 + -105

Combine like terms: -87 + -105 = -192
-16x = -192

Divide each side by '-16'.
x = 12

Simplifying
x = 12

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