28=-21x+7y

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Solution for 28=-21x+7y equation:


Simplifying
28 = -21x + 7y

Solving
28 = -21x + 7y

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
28 + 21x = -21x + 21x + 7y

Combine like terms: -21x + 21x = 0
28 + 21x = 0 + 7y
28 + 21x = 7y

Add '-28' to each side of the equation.
28 + -28 + 21x = -28 + 7y

Combine like terms: 28 + -28 = 0
0 + 21x = -28 + 7y
21x = -28 + 7y

Divide each side by '21'.
x = -1.333333333 + 0.3333333333y

Simplifying
x = -1.333333333 + 0.3333333333y

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