-3(2-7x)=40-2x

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Solution for -3(2-7x)=40-2x equation:


Simplifying
-3(2 + -7x) = 40 + -2x
(2 * -3 + -7x * -3) = 40 + -2x
(-6 + 21x) = 40 + -2x

Solving
-6 + 21x = 40 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-6 + 21x + 2x = 40 + -2x + 2x

Combine like terms: 21x + 2x = 23x
-6 + 23x = 40 + -2x + 2x

Combine like terms: -2x + 2x = 0
-6 + 23x = 40 + 0
-6 + 23x = 40

Add '6' to each side of the equation.
-6 + 6 + 23x = 40 + 6

Combine like terms: -6 + 6 = 0
0 + 23x = 40 + 6
23x = 40 + 6

Combine like terms: 40 + 6 = 46
23x = 46

Divide each side by '23'.
x = 2

Simplifying
x = 2

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