4-5-x=-7

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Solution for 4-5-x=-7 equation: 


Simplifying
4 + -5 + -1x = -7

Combine like terms: 4 + -5 = -1
-1 + -1x = -7

Solving
-1 + -1x = -7

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + -1x = -7 + 1

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

Combine like terms: -7 + 1 = -6
-1x = -6

Divide each side by '-1'.
x = 6

Simplifying
x = 6

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