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Simplifying
-220 = 5 + -1x2
Solving
-220 = 5 + -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
-220 + x2 = 5 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
-220 + x2 = 5 + 0
-220 + x2 = 5
Add '220' to each side of the equation.
-220 + 220 + x2 = 5 + 220
Combine like terms: -220 + 220 = 0
0 + x2 = 5 + 220
x2 = 5 + 220
Combine like terms: 5 + 220 = 225
x2 = 225
Simplifying
x2 = 225
Take the square root of each side:
x = {-15, 15}
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