3(5x-1)+21=10x-2

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Solution for 3(5x-1)+21=10x-2 equation:


Simplifying
3(5x + -1) + 21 = 10x + -2

Reorder the terms:
3(-1 + 5x) + 21 = 10x + -2
(-1 * 3 + 5x * 3) + 21 = 10x + -2
(-3 + 15x) + 21 = 10x + -2

Reorder the terms:
-3 + 21 + 15x = 10x + -2

Combine like terms: -3 + 21 = 18
18 + 15x = 10x + -2

Reorder the terms:
18 + 15x = -2 + 10x

Solving
18 + 15x = -2 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
18 + 15x + -10x = -2 + 10x + -10x

Combine like terms: 15x + -10x = 5x
18 + 5x = -2 + 10x + -10x

Combine like terms: 10x + -10x = 0
18 + 5x = -2 + 0
18 + 5x = -2

Add '-18' to each side of the equation.
18 + -18 + 5x = -2 + -18

Combine like terms: 18 + -18 = 0
0 + 5x = -2 + -18
5x = -2 + -18

Combine like terms: -2 + -18 = -20
5x = -20

Divide each side by '5'.
x = -4

Simplifying
x = -4

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