.70x+.10(90)=.60(x+90)

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Solution for .70x+.10(90)=.60(x+90) equation:


Simplifying
0.70x + 0.10(90) = 0.60(x + 90)

Multiply 0.10 * 90
0.70x + 9 = 0.60(x + 90)

Reorder the terms:
9 + 0.70x = 0.60(x + 90)

Reorder the terms:
9 + 0.70x = 0.60(90 + x)
9 + 0.70x = (90 * 0.60 + x * 0.60)
9 + 0.70x = (54 + 0.60x)

Solving
9 + 0.70x = 54 + 0.60x

Solving for variable 'x'.

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

Add '-0.60x' to each side of the equation.
9 + 0.70x + -0.60x = 54 + 0.60x + -0.60x

Combine like terms: 0.70x + -0.60x = 0.1x
9 + 0.1x = 54 + 0.60x + -0.60x

Combine like terms: 0.60x + -0.60x = 0.00
9 + 0.1x = 54 + 0.00
9 + 0.1x = 54

Add '-9' to each side of the equation.
9 + -9 + 0.1x = 54 + -9

Combine like terms: 9 + -9 = 0
0 + 0.1x = 54 + -9
0.1x = 54 + -9

Combine like terms: 54 + -9 = 45
0.1x = 45

Divide each side by '0.1'.
x = 450

Simplifying
x = 450

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