121=7-3(5x-3)

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Solution for 121=7-3(5x-3) equation:


Simplifying
121 = 7 + -3(5x + -3)

Reorder the terms:
121 = 7 + -3(-3 + 5x)
121 = 7 + (-3 * -3 + 5x * -3)
121 = 7 + (9 + -15x)

Combine like terms: 7 + 9 = 16
121 = 16 + -15x

Solving
121 = 16 + -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
121 + 15x = 16 + -15x + 15x

Combine like terms: -15x + 15x = 0
121 + 15x = 16 + 0
121 + 15x = 16

Add '-121' to each side of the equation.
121 + -121 + 15x = 16 + -121

Combine like terms: 121 + -121 = 0
0 + 15x = 16 + -121
15x = 16 + -121

Combine like terms: 16 + -121 = -105
15x = -105

Divide each side by '15'.
x = -7

Simplifying
x = -7

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