9h+12=7-(3h+4)-1

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Solution for 9h+12=7-(3h+4)-1 equation:


Simplifying
9h + 12 = 7 + -1(3h + 4) + -1

Reorder the terms:
12 + 9h = 7 + -1(3h + 4) + -1

Reorder the terms:
12 + 9h = 7 + -1(4 + 3h) + -1
12 + 9h = 7 + (4 * -1 + 3h * -1) + -1
12 + 9h = 7 + (-4 + -3h) + -1

Reorder the terms:
12 + 9h = 7 + -4 + -1 + -3h

Combine like terms: 7 + -4 = 3
12 + 9h = 3 + -1 + -3h

Combine like terms: 3 + -1 = 2
12 + 9h = 2 + -3h

Solving
12 + 9h = 2 + -3h

Solving for variable 'h'.

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

Add '3h' to each side of the equation.
12 + 9h + 3h = 2 + -3h + 3h

Combine like terms: 9h + 3h = 12h
12 + 12h = 2 + -3h + 3h

Combine like terms: -3h + 3h = 0
12 + 12h = 2 + 0
12 + 12h = 2

Add '-12' to each side of the equation.
12 + -12 + 12h = 2 + -12

Combine like terms: 12 + -12 = 0
0 + 12h = 2 + -12
12h = 2 + -12

Combine like terms: 2 + -12 = -10
12h = -10

Divide each side by '12'.
h = -0.8333333333

Simplifying
h = -0.8333333333

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