.8x+90(.1)=.7+x

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Solution for .8x+90(.1)=.7+x equation: 


Simplifying
0.8x + 90(0.1) = 0.7 + x

Multiply 90 * 0.1
0.8x + 9 = 0.7 + x

Reorder the terms:
9 + 0.8x = 0.7 + x

Solving
9 + 0.8x = 0.7 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + 0.8x + -1x = 0.7 + x + -1x

Combine like terms: 0.8x + -1x = -0.2x
9 + -0.2x = 0.7 + x + -1x

Combine like terms: x + -1x = 0
9 + -0.2x = 0.7 + 0
9 + -0.2x = 0.7

Add '-9' to each side of the equation.
9 + -9 + -0.2x = 0.7 + -9

Combine like terms: 9 + -9 = 0
0 + -0.2x = 0.7 + -9
-0.2x = 0.7 + -9

Combine like terms: 0.7 + -9 = -8.3
-0.2x = -8.3

Divide each side by '-0.2'.
x = 41.5

Simplifying
x = 41.5

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