180=7x-3(-6x-15)

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Solution for 180=7x-3(-6x-15) equation:


Simplifying
180 = 7x + -3(-6x + -15)

Reorder the terms:
180 = 7x + -3(-15 + -6x)
180 = 7x + (-15 * -3 + -6x * -3)
180 = 7x + (45 + 18x)

Reorder the terms:
180 = 45 + 7x + 18x

Combine like terms: 7x + 18x = 25x
180 = 45 + 25x

Solving
180 = 45 + 25x

Solving for variable 'x'.

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

Add '-25x' to each side of the equation.
180 + -25x = 45 + 25x + -25x

Combine like terms: 25x + -25x = 0
180 + -25x = 45 + 0
180 + -25x = 45

Add '-180' to each side of the equation.
180 + -180 + -25x = 45 + -180

Combine like terms: 180 + -180 = 0
0 + -25x = 45 + -180
-25x = 45 + -180

Combine like terms: 45 + -180 = -135
-25x = -135

Divide each side by '-25'.
x = 5.4

Simplifying
x = 5.4

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