-7(3+2x)=40

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


Simplifying
-7(3 + 2x) = 40
(3 * -7 + 2x * -7) = 40
(-21 + -14x) = 40

Solving
-21 + -14x = 40

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -14x = 40 + 21

Combine like terms: -21 + 21 = 0
0 + -14x = 40 + 21
-14x = 40 + 21

Combine like terms: 40 + 21 = 61
-14x = 61

Divide each side by '-14'.
x = -4.357142857

Simplifying
x = -4.357142857

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