0.8x-0.4(80+x)=-0.05(80)

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Solution for 0.8x-0.4(80+x)=-0.05(80) equation:


Simplifying
0.8x + -0.4(80 + x) = -0.05(80)
0.8x + (80 * -0.4 + x * -0.4) = -0.05(80)
0.8x + (-32 + -0.4x) = -0.05(80)

Reorder the terms:
-32 + 0.8x + -0.4x = -0.05(80)

Combine like terms: 0.8x + -0.4x = 0.4x
-32 + 0.4x = -0.05(80)

Multiply -0.05 * 80
-32 + 0.4x = -4

Solving
-32 + 0.4x = -4

Solving for variable 'x'.

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

Add '32' to each side of the equation.
-32 + 32 + 0.4x = -4 + 32

Combine like terms: -32 + 32 = 0
0 + 0.4x = -4 + 32
0.4x = -4 + 32

Combine like terms: -4 + 32 = 28
0.4x = 28

Divide each side by '0.4'.
x = 70

Simplifying
x = 70

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