0.8x-0.7(20+x)=-0.5(20)

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Solution for 0.8x-0.7(20+x)=-0.5(20) equation:


Simplifying
0.8x + -0.7(20 + x) = -0.5(20)
0.8x + (20 * -0.7 + x * -0.7) = -0.5(20)
0.8x + (-14 + -0.7x) = -0.5(20)

Reorder the terms:
-14 + 0.8x + -0.7x = -0.5(20)

Combine like terms: 0.8x + -0.7x = 0.1x
-14 + 0.1x = -0.5(20)

Multiply -0.5 * 20
-14 + 0.1x = -10

Solving
-14 + 0.1x = -10

Solving for variable 'x'.

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

Add '14' to each side of the equation.
-14 + 14 + 0.1x = -10 + 14

Combine like terms: -14 + 14 = 0
0 + 0.1x = -10 + 14
0.1x = -10 + 14

Combine like terms: -10 + 14 = 4
0.1x = 4

Divide each side by '0.1'.
x = 40

Simplifying
x = 40

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