7+3=7y-21

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Solution for 7+3=7y-21 equation:


Simplifying
7 + 3 = 7y + -21

Combine like terms: 7 + 3 = 10
10 = 7y + -21

Reorder the terms:
10 = -21 + 7y

Solving
10 = -21 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
10 + -7y = -21 + 7y + -7y

Combine like terms: 7y + -7y = 0
10 + -7y = -21 + 0
10 + -7y = -21

Add '-10' to each side of the equation.
10 + -10 + -7y = -21 + -10

Combine like terms: 10 + -10 = 0
0 + -7y = -21 + -10
-7y = -21 + -10

Combine like terms: -21 + -10 = -31
-7y = -31

Divide each side by '-7'.
y = 4.428571429

Simplifying
y = 4.428571429

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