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Simplifying
1.5x2 + -4 = 20
Reorder the terms:
-4 + 1.5x2 = 20
Solving
-4 + 1.5x2 = 20
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4' to each side of the equation.
-4 + 4 + 1.5x2 = 20 + 4
Combine like terms: -4 + 4 = 0
0 + 1.5x2 = 20 + 4
1.5x2 = 20 + 4
Combine like terms: 20 + 4 = 24
1.5x2 = 24
Divide each side by '1.5'.
x2 = 16
Simplifying
x2 = 16
Take the square root of each side:
x = {-4, 4}
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