.70x+.05(18-x)=.10(126)

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Solution for .70x+.05(18-x)=.10(126) equation:


Simplifying
0.70x + 0.05(18 + -1x) = 0.10(126)
0.70x + (18 * 0.05 + -1x * 0.05) = 0.10(126)
0.70x + (0.9 + -0.05x) = 0.10(126)

Reorder the terms:
0.9 + 0.70x + -0.05x = 0.10(126)

Combine like terms: 0.70x + -0.05x = 0.65x
0.9 + 0.65x = 0.10(126)

Multiply 0.10 * 126
0.9 + 0.65x = 12.6

Solving
0.9 + 0.65x = 12.6

Solving for variable 'x'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + 0.65x = 12.6 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.65x = 12.6 + -0.9
0.65x = 12.6 + -0.9

Combine like terms: 12.6 + -0.9 = 11.7
0.65x = 11.7

Divide each side by '0.65'.
x = 18

Simplifying
x = 18

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