15x-20(.3+.6)=-7

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Solution for 15x-20(.3+.6)=-7 equation:


Simplifying
15x + -20(0.3 + 0.6) = -7

Combine like terms: 0.3 + 0.6 = 0.9
15x + -20(0.9) = -7

Multiply -20 * 0.9
15x + -18 = -7

Reorder the terms:
-18 + 15x = -7

Solving
-18 + 15x = -7

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '18' to each side of the equation.
-18 + 18 + 15x = -7 + 18

Combine like terms: -18 + 18 = 0
0 + 15x = -7 + 18
15x = -7 + 18

Combine like terms: -7 + 18 = 11
15x = 11

Divide each side by '15'.
x = 0.7333333333

Simplifying
x = 0.7333333333

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