42+8=70+4y

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Solution for 42+8=70+4y equation: 


Simplifying
42 + 8 = 70 + 4y

Combine like terms: 42 + 8 = 50
50 = 70 + 4y

Solving
50 = 70 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
50 + -4y = 70 + 4y + -4y

Combine like terms: 4y + -4y = 0
50 + -4y = 70 + 0
50 + -4y = 70

Add '-50' to each side of the equation.
50 + -50 + -4y = 70 + -50

Combine like terms: 50 + -50 = 0
0 + -4y = 70 + -50
-4y = 70 + -50

Combine like terms: 70 + -50 = 20
-4y = 20

Divide each side by '-4'.
y = -5

Simplifying
y = -5

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