8x+12+3y-9=78

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Solution for 8x+12+3y-9=78 equation:


Simplifying
8x + 12 + 3y + -9 = 78

Reorder the terms:
12 + -9 + 8x + 3y = 78

Combine like terms: 12 + -9 = 3
3 + 8x + 3y = 78

Solving
3 + 8x + 3y = 78

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + 8x + -3 + 3y = 78 + -3

Reorder the terms:
3 + -3 + 8x + 3y = 78 + -3

Combine like terms: 3 + -3 = 0
0 + 8x + 3y = 78 + -3
8x + 3y = 78 + -3

Combine like terms: 78 + -3 = 75
8x + 3y = 75

Add '-3y' to each side of the equation.
8x + 3y + -3y = 75 + -3y

Combine like terms: 3y + -3y = 0
8x + 0 = 75 + -3y
8x = 75 + -3y

Divide each side by '8'.
x = 9.375 + -0.375y

Simplifying
x = 9.375 + -0.375y

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