21+4y=17

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Solution for 21+4y=17 equation: 


Simplifying
21 + 4y = 17

Solving
21 + 4y = 17

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + 4y = 17 + -21

Combine like terms: 21 + -21 = 0
0 + 4y = 17 + -21
4y = 17 + -21

Combine like terms: 17 + -21 = -4
4y = -4

Divide each side by '4'.
y = -1

Simplifying
y = -1

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