40=4y+9

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Solution for 40=4y+9 equation:


Simplifying
40 = 4y + 9

Reorder the terms:
40 = 9 + 4y

Solving
40 = 9 + 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.
40 + -4y = 9 + 4y + -4y

Combine like terms: 4y + -4y = 0
40 + -4y = 9 + 0
40 + -4y = 9

Add '-40' to each side of the equation.
40 + -40 + -4y = 9 + -40

Combine like terms: 40 + -40 = 0
0 + -4y = 9 + -40
-4y = 9 + -40

Combine like terms: 9 + -40 = -31
-4y = -31

Divide each side by '-4'.
y = 7.75

Simplifying
y = 7.75

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