-0.4(40)+.8x=.4(40+x)

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Solution for -0.4(40)+.8x=.4(40+x) equation:


Simplifying
-0.4(40) + 0.8x = 0.4(40 + x)

Multiply -0.4 * 40
-16 + 0.8x = 0.4(40 + x)
-16 + 0.8x = (40 * 0.4 + x * 0.4)
-16 + 0.8x = (16 + 0.4x)

Solving
-16 + 0.8x = 16 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
-16 + 0.8x + -0.4x = 16 + 0.4x + -0.4x

Combine like terms: 0.8x + -0.4x = 0.4x
-16 + 0.4x = 16 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
-16 + 0.4x = 16 + 0.0
-16 + 0.4x = 16

Add '16' to each side of the equation.
-16 + 16 + 0.4x = 16 + 16

Combine like terms: -16 + 16 = 0
0 + 0.4x = 16 + 16
0.4x = 16 + 16

Combine like terms: 16 + 16 = 32
0.4x = 32

Divide each side by '0.4'.
x = 80

Simplifying
x = 80

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