.15+.06(90-m)=9.9

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Solution for .15+.06(90-m)=9.9 equation: 


Simplifying
0.15 + 0.06(90 + -1m) = 9.9
0.15 + (90 * 0.06 + -1m * 0.06) = 9.9
0.15 + (5.4 + -0.06m) = 9.9

Combine like terms: 0.15 + 5.4 = 5.55
5.55 + -0.06m = 9.9

Solving
5.55 + -0.06m = 9.9

Solving for variable 'm'.

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

Add '-5.55' to each side of the equation.
5.55 + -5.55 + -0.06m = 9.9 + -5.55

Combine like terms: 5.55 + -5.55 = 0.00
0.00 + -0.06m = 9.9 + -5.55
-0.06m = 9.9 + -5.55

Combine like terms: 9.9 + -5.55 = 4.35
-0.06m = 4.35

Divide each side by '-0.06'.
m = -72.5

Simplifying
m = -72.5

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