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Simplifying
5x2 + -35 = 90
Reorder the terms:
-35 + 5x2 = 90
Solving
-35 + 5x2 = 90
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '35' to each side of the equation.
-35 + 35 + 5x2 = 90 + 35
Combine like terms: -35 + 35 = 0
0 + 5x2 = 90 + 35
5x2 = 90 + 35
Combine like terms: 90 + 35 = 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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