4.5=2.4-0.4y

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Solution for 4.5=2.4-0.4y equation: 


Simplifying
4.5 = 2.4 + -0.4y

Solving
4.5 = 2.4 + -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.
4.5 + 0.4y = 2.4 + -0.4y + 0.4y

Combine like terms: -0.4y + 0.4y = 0.0
4.5 + 0.4y = 2.4 + 0.0
4.5 + 0.4y = 2.4

Add '-4.5' to each side of the equation.
4.5 + -4.5 + 0.4y = 2.4 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 0.4y = 2.4 + -4.5
0.4y = 2.4 + -4.5

Combine like terms: 2.4 + -4.5 = -2.1
0.4y = -2.1

Divide each side by '0.4'.
y = -5.25

Simplifying
y = -5.25

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