0.1(x+90)+0.7x=25

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Solution for 0.1(x+90)+0.7x=25 equation: 


Simplifying
0.1(x + 90) + 0.7x = 25

Reorder the terms:
0.1(90 + x) + 0.7x = 25
(90 * 0.1 + x * 0.1) + 0.7x = 25
(9 + 0.1x) + 0.7x = 25

Combine like terms: 0.1x + 0.7x = 0.8x
9 + 0.8x = 25

Solving
9 + 0.8x = 25

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 0.8x = 25 + -9

Combine like terms: 9 + -9 = 0
0 + 0.8x = 25 + -9
0.8x = 25 + -9

Combine like terms: 25 + -9 = 16
0.8x = 16

Divide each side by '0.8'.
x = 20

Simplifying
x = 20

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