-2(5+7x)+3x=-21

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Solution for -2(5+7x)+3x=-21 equation:


Simplifying
-2(5 + 7x) + 3x = -21
(5 * -2 + 7x * -2) + 3x = -21
(-10 + -14x) + 3x = -21

Combine like terms: -14x + 3x = -11x
-10 + -11x = -21

Solving
-10 + -11x = -21

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + -11x = -21 + 10

Combine like terms: -10 + 10 = 0
0 + -11x = -21 + 10
-11x = -21 + 10

Combine like terms: -21 + 10 = -11
-11x = -11

Divide each side by '-11'.
x = 1

Simplifying
x = 1

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