4-(x+7)=15

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Solution for 4-(x+7)=15 equation:


Simplifying
4 + -1(x + 7) = 15

Reorder the terms:
4 + -1(7 + x) = 15
4 + (7 * -1 + x * -1) = 15
4 + (-7 + -1x) = 15

Combine like terms: 4 + -7 = -3
-3 + -1x = 15

Solving
-3 + -1x = 15

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 = 15 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = 15 + 3
-1x = 15 + 3

Combine like terms: 15 + 3 = 18
-1x = 18

Divide each side by '-1'.
x = -18

Simplifying
x = -18

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