-2y+21=7(5)

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Solution for -2y+21=7(5) equation: 


Simplifying
-2y + 21 = 7(5)

Reorder the terms:
21 + -2y = 7(5)

Multiply 7 * 5
21 + -2y = 35

Solving
21 + -2y = 35

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 + -2y = 35 + -21

Combine like terms: 21 + -21 = 0
0 + -2y = 35 + -21
-2y = 35 + -21

Combine like terms: 35 + -21 = 14
-2y = 14

Divide each side by '-2'.
y = -7

Simplifying
y = -7

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