-10*9-4y=40

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Solution for -10*9-4y=40 equation: 


Simplifying
-10 * 9 + -4y = 40

Multiply -10 * 9
-90 + -4y = 40

Solving
-90 + -4y = 40

Solving for variable 'y'.

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

Add '90' to each side of the equation.
-90 + 90 + -4y = 40 + 90

Combine like terms: -90 + 90 = 0
0 + -4y = 40 + 90
-4y = 40 + 90

Combine like terms: 40 + 90 = 130
-4y = 130

Divide each side by '-4'.
y = -32.5

Simplifying
y = -32.5

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