2x+8y+18=3x+4y-21

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Solution for 2x+8y+18=3x+4y-21 equation:


Simplifying
2x + 8y + 18 = 3x + 4y + -21

Reorder the terms:
18 + 2x + 8y = 3x + 4y + -21

Reorder the terms:
18 + 2x + 8y = -21 + 3x + 4y

Solving
18 + 2x + 8y = -21 + 3x + 4y

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.
18 + 2x + -3x + 8y = -21 + 3x + -3x + 4y

Combine like terms: 2x + -3x = -1x
18 + -1x + 8y = -21 + 3x + -3x + 4y

Combine like terms: 3x + -3x = 0
18 + -1x + 8y = -21 + 0 + 4y
18 + -1x + 8y = -21 + 4y

Add '-18' to each side of the equation.
18 + -1x + -18 + 8y = -21 + -18 + 4y

Reorder the terms:
18 + -18 + -1x + 8y = -21 + -18 + 4y

Combine like terms: 18 + -18 = 0
0 + -1x + 8y = -21 + -18 + 4y
-1x + 8y = -21 + -18 + 4y

Combine like terms: -21 + -18 = -39
-1x + 8y = -39 + 4y

Add '-8y' to each side of the equation.
-1x + 8y + -8y = -39 + 4y + -8y

Combine like terms: 8y + -8y = 0
-1x + 0 = -39 + 4y + -8y
-1x = -39 + 4y + -8y

Combine like terms: 4y + -8y = -4y
-1x = -39 + -4y

Divide each side by '-1'.
x = 39 + 4y

Simplifying
x = 39 + 4y

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