3x+7-4y=28

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Solution for 3x+7-4y=28 equation:


Simplifying
3x + 7 + -4y = 28

Reorder the terms:
7 + 3x + -4y = 28

Solving
7 + 3x + -4y = 28

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + 3x + -7 + -4y = 28 + -7

Reorder the terms:
7 + -7 + 3x + -4y = 28 + -7

Combine like terms: 7 + -7 = 0
0 + 3x + -4y = 28 + -7
3x + -4y = 28 + -7

Combine like terms: 28 + -7 = 21
3x + -4y = 21

Add '4y' to each side of the equation.
3x + -4y + 4y = 21 + 4y

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

Divide each side by '3'.
x = 7 + 1.333333333y

Simplifying
x = 7 + 1.333333333y

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