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

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


Simplifying
5x + 3(1 + -2x) = 21
5x + (1 * 3 + -2x * 3) = 21
5x + (3 + -6x) = 21

Reorder the terms:
3 + 5x + -6x = 21

Combine like terms: 5x + -6x = -1x
3 + -1x = 21

Solving
3 + -1x = 21

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -1x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 21 + -3
-1x = 21 + -3

Combine like terms: 21 + -3 = 18
-1x = 18

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

Simplifying
x = -18

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