4x+30=y

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Solution for 4x+30=y equation: 


Simplifying
4x + 30 = y

Reorder the terms:
30 + 4x = y

Solving
30 + 4x = y

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 4x = -30 + y

Combine like terms: 30 + -30 = 0
0 + 4x = -30 + y
4x = -30 + y

Divide each side by '4'.
x = -7.5 + 0.25y

Simplifying
x = -7.5 + 0.25y

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