-3x+8y-21=0

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


Simplifying
-3x + 8y + -21 = 0

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

Solving
-21 + -3x + 8y = 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 + -3x + 21 + 8y = 0 + 21

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

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

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

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

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

Divide each side by '-3'.
x = -7 + 2.666666667y

Simplifying
x = -7 + 2.666666667y

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