.8x=.7x+4

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Solution for .8x=.7x+4 equation: 


Simplifying
0.8x = 0.7x + 4

Reorder the terms:
0.8x = 4 + 0.7x

Solving
0.8x = 4 + 0.7x

Solving for variable 'x'.

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

Add '-0.7x' to each side of the equation.
0.8x + -0.7x = 4 + 0.7x + -0.7x

Combine like terms: 0.8x + -0.7x = 0.1x
0.1x = 4 + 0.7x + -0.7x

Combine like terms: 0.7x + -0.7x = 0.0
0.1x = 4 + 0.0
0.1x = 4

Divide each side by '0.1'.
x = 40

Simplifying
x = 40

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