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Simplifying
10 = 20 + -1(13x2)
Remove parenthesis around (13x2)
10 = 20 + -1 * 13x2
Multiply -1 * 13
10 = 20 + -13x2
Solving
10 = 20 + -13x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '13x2' to each side of the equation.
10 + 13x2 = 20 + -13x2 + 13x2
Combine like terms: -13x2 + 13x2 = 0
10 + 13x2 = 20 + 0
10 + 13x2 = 20
Add '-10' to each side of the equation.
10 + -10 + 13x2 = 20 + -10
Combine like terms: 10 + -10 = 0
0 + 13x2 = 20 + -10
13x2 = 20 + -10
Combine like terms: 20 + -10 = 10
13x2 = 10
Divide each side by '13'.
x2 = 0.7692307692
Simplifying
x2 = 0.7692307692
Take the square root of each side:
x = {-0.877058019, 0.877058019}
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