18+15y-23=y+4(18)+21

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Solution for 18+15y-23=y+4(18)+21 equation:


Simplifying
18 + 15y + -23 = y + 4(18) + 21

Reorder the terms:
18 + -23 + 15y = y + 4(18) + 21

Combine like terms: 18 + -23 = -5
-5 + 15y = y + 4(18) + 21

Multiply 4 * 18
-5 + 15y = y + 72 + 21

Reorder the terms:
-5 + 15y = 72 + 21 + y

Combine like terms: 72 + 21 = 93
-5 + 15y = 93 + y

Solving
-5 + 15y = 93 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-5 + 15y + -1y = 93 + y + -1y

Combine like terms: 15y + -1y = 14y
-5 + 14y = 93 + y + -1y

Combine like terms: y + -1y = 0
-5 + 14y = 93 + 0
-5 + 14y = 93

Add '5' to each side of the equation.
-5 + 5 + 14y = 93 + 5

Combine like terms: -5 + 5 = 0
0 + 14y = 93 + 5
14y = 93 + 5

Combine like terms: 93 + 5 = 98
14y = 98

Divide each side by '14'.
y = 7

Simplifying
y = 7

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