3(3)-4=.4(y-5)

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Solution for 3(3)-4=.4(y-5) equation:


Simplifying
3(3) + -4 = 0.4(y + -5)

Multiply 3 * 3
9 + -4 = 0.4(y + -5)

Combine like terms: 9 + -4 = 5
5 = 0.4(y + -5)

Reorder the terms:
5 = 0.4(-5 + y)
5 = (-5 * 0.4 + y * 0.4)
5 = (-2 + 0.4y)

Solving
5 = -2 + 0.4y

Solving for variable 'y'.

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

Add '-0.4y' to each side of the equation.
5 + -0.4y = -2 + 0.4y + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
5 + -0.4y = -2 + 0.0
5 + -0.4y = -2

Add '-5' to each side of the equation.
5 + -5 + -0.4y = -2 + -5

Combine like terms: 5 + -5 = 0
0 + -0.4y = -2 + -5
-0.4y = -2 + -5

Combine like terms: -2 + -5 = -7
-0.4y = -7

Divide each side by '-0.4'.
y = 17.5

Simplifying
y = 17.5

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