2(8m-9)-(m-1)=-84

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Solution for 2(8m-9)-(m-1)=-84 equation:


Simplifying
2(8m + -9) + -1(m + -1) = -84

Reorder the terms:
2(-9 + 8m) + -1(m + -1) = -84
(-9 * 2 + 8m * 2) + -1(m + -1) = -84
(-18 + 16m) + -1(m + -1) = -84

Reorder the terms:
-18 + 16m + -1(-1 + m) = -84
-18 + 16m + (-1 * -1 + m * -1) = -84
-18 + 16m + (1 + -1m) = -84

Reorder the terms:
-18 + 1 + 16m + -1m = -84

Combine like terms: -18 + 1 = -17
-17 + 16m + -1m = -84

Combine like terms: 16m + -1m = 15m
-17 + 15m = -84

Solving
-17 + 15m = -84

Solving for variable 'm'.

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

Add '17' to each side of the equation.
-17 + 17 + 15m = -84 + 17

Combine like terms: -17 + 17 = 0
0 + 15m = -84 + 17
15m = -84 + 17

Combine like terms: -84 + 17 = -67
15m = -67

Divide each side by '15'.
m = -4.466666667

Simplifying
m = -4.466666667

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