-(3-x)=-7

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


Simplifying
-1(3 + -1x) = -7
(3 * -1 + -1x * -1) = -7
(-3 + 1x) = -7

Solving
-3 + 1x = -7

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 = -7 + 3

Combine like terms: -3 + 3 = 0
0 + 1x = -7 + 3
1x = -7 + 3

Combine like terms: -7 + 3 = -4
1x = -4

Divide each side by '1'.
x = -4

Simplifying
x = -4

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