90+0.7x=30+0.8x

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Solution for 90+0.7x=30+0.8x equation:


Simplifying
90 + 0.7x = 30 + 0.8x

Solving
90 + 0.7x = 30 + 0.8x

Solving for variable 'x'.

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

Add '-0.8x' to each side of the equation.
90 + 0.7x + -0.8x = 30 + 0.8x + -0.8x

Combine like terms: 0.7x + -0.8x = -0.1x
90 + -0.1x = 30 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
90 + -0.1x = 30 + 0.0
90 + -0.1x = 30

Add '-90' to each side of the equation.
90 + -90 + -0.1x = 30 + -90

Combine like terms: 90 + -90 = 0
0 + -0.1x = 30 + -90
-0.1x = 30 + -90

Combine like terms: 30 + -90 = -60
-0.1x = -60

Divide each side by '-0.1'.
x = 600

Simplifying
x = 600

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