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Simplifying
7x2 + -14 = -7
Reorder the terms:
-14 + 7x2 = -7
Solving
-14 + 7x2 = -7
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '14' to each side of the equation.
-14 + 14 + 7x2 = -7 + 14
Combine like terms: -14 + 14 = 0
0 + 7x2 = -7 + 14
7x2 = -7 + 14
Combine like terms: -7 + 14 = 7
7x2 = 7
Divide each side by '7'.
x2 = 1
Simplifying
x2 = 1
Take the square root of each side:
x = {-1, 1}
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