7x+21=5y+8

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Solution for 7x+21=5y+8 equation: 


Simplifying
7x + 21 = 5y + 8

Reorder the terms:
21 + 7x = 5y + 8

Reorder the terms:
21 + 7x = 8 + 5y

Solving
21 + 7x = 8 + 5y

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 + -21 + 7x = 8 + -21 + 5y

Combine like terms: 21 + -21 = 0
0 + 7x = 8 + -21 + 5y
7x = 8 + -21 + 5y

Combine like terms: 8 + -21 = -13
7x = -13 + 5y

Divide each side by '7'.
x = -1.857142857 + 0.7142857143y

Simplifying
x = -1.857142857 + 0.7142857143y

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