2.9=1.4-0.4y

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Solution for 2.9=1.4-0.4y equation: 


Simplifying
2.9 = 1.4 + -0.4y

Solving
2.9 = 1.4 + -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.
2.9 + 0.4y = 1.4 + -0.4y + 0.4y

Combine like terms: -0.4y + 0.4y = 0.0
2.9 + 0.4y = 1.4 + 0.0
2.9 + 0.4y = 1.4

Add '-2.9' to each side of the equation.
2.9 + -2.9 + 0.4y = 1.4 + -2.9

Combine like terms: 2.9 + -2.9 = 0.0
0.0 + 0.4y = 1.4 + -2.9
0.4y = 1.4 + -2.9

Combine like terms: 1.4 + -2.9 = -1.5
0.4y = -1.5

Divide each side by '0.4'.
y = -3.75

Simplifying
y = -3.75

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