4*1.3+3y=7*1.3-y

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Solution for 4*1.3+3y=7*1.3-y equation: 


Simplifying
4 * 1.3 + 3y = 7 * 1.3 + -1y

Multiply 4 * 1.3
5.2 + 3y = 7 * 1.3 + -1y

Multiply 7 * 1.3
5.2 + 3y = 9.1 + -1y

Solving
5.2 + 3y = 9.1 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
5.2 + 3y + y = 9.1 + -1y + y

Combine like terms: 3y + y = 4y
5.2 + 4y = 9.1 + -1y + y

Combine like terms: -1y + y = 0
5.2 + 4y = 9.1 + 0
5.2 + 4y = 9.1

Add '-5.2' to each side of the equation.
5.2 + -5.2 + 4y = 9.1 + -5.2

Combine like terms: 5.2 + -5.2 = 0.0
0.0 + 4y = 9.1 + -5.2
4y = 9.1 + -5.2

Combine like terms: 9.1 + -5.2 = 3.9
4y = 3.9

Divide each side by '4'.
y = 0.975

Simplifying
y = 0.975

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