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Simplifying
5x2 + -55 = 70
Reorder the terms:
-55 + 5x2 = 70
Solving
-55 + 5x2 = 70
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '55' to each side of the equation.
-55 + 55 + 5x2 = 70 + 55
Combine like terms: -55 + 55 = 0
0 + 5x2 = 70 + 55
5x2 = 70 + 55
Combine like terms: 70 + 55 = 125
5x2 = 125
Divide each side by '5'.
x2 = 25
Simplifying
x2 = 25
Take the square root of each side:
x = {-5, 5}
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