78-30(x+y)=3x

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Solution for 78-30(x+y)=3x equation:


Simplifying
78 + -30(x + y) = 3x
78 + (x * -30 + y * -30) = 3x
78 + (-30x + -30y) = 3x

Solving
78 + -30x + -30y = 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
78 + -30x + -3x + -30y = 3x + -3x

Combine like terms: -30x + -3x = -33x
78 + -33x + -30y = 3x + -3x

Combine like terms: 3x + -3x = 0
78 + -33x + -30y = 0

Add '-78' to each side of the equation.
78 + -33x + -78 + -30y = 0 + -78

Reorder the terms:
78 + -78 + -33x + -30y = 0 + -78

Combine like terms: 78 + -78 = 0
0 + -33x + -30y = 0 + -78
-33x + -30y = 0 + -78

Combine like terms: 0 + -78 = -78
-33x + -30y = -78

Add '30y' to each side of the equation.
-33x + -30y + 30y = -78 + 30y

Combine like terms: -30y + 30y = 0
-33x + 0 = -78 + 30y
-33x = -78 + 30y

Divide each side by '-33'.
x = 2.363636364 + -0.9090909091y

Simplifying
x = 2.363636364 + -0.9090909091y

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