.9y+3=.4y+1.5

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Solution for .9y+3=.4y+1.5 equation:


Simplifying
0.9y + 3 = 0.4y + 1.5

Reorder the terms:
3 + 0.9y = 0.4y + 1.5

Reorder the terms:
3 + 0.9y = 1.5 + 0.4y

Solving
3 + 0.9y = 1.5 + 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.
3 + 0.9y + -0.4y = 1.5 + 0.4y + -0.4y

Combine like terms: 0.9y + -0.4y = 0.5y
3 + 0.5y = 1.5 + 0.4y + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
3 + 0.5y = 1.5 + 0.0
3 + 0.5y = 1.5

Add '-3' to each side of the equation.
3 + -3 + 0.5y = 1.5 + -3

Combine like terms: 3 + -3 = 0
0 + 0.5y = 1.5 + -3
0.5y = 1.5 + -3

Combine like terms: 1.5 + -3 = -1.5
0.5y = -1.5

Divide each side by '0.5'.
y = -3

Simplifying
y = -3

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