-8x+3y+21=0

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Solution for -8x+3y+21=0 equation:


Simplifying
-8x + 3y + 21 = 0

Reorder the terms:
21 + -8x + 3y = 0

Solving
21 + -8x + 3y = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -8x + -21 + 3y = 0 + -21

Reorder the terms:
21 + -21 + -8x + 3y = 0 + -21

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

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

Add '-3y' to each side of the equation.
-8x + 3y + -3y = -21 + -3y

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

Divide each side by '-8'.
x = 2.625 + 0.375y

Simplifying
x = 2.625 + 0.375y

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