3y=4[5-3(4-7y)]

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Solution for 3y=4[5-3(4-7y)] equation:


Simplifying
3y = 4[5 + -3(4 + -7y)]
3y = 4[5 + (4 * -3 + -7y * -3)]
3y = 4[5 + (-12 + 21y)]

Combine like terms: 5 + -12 = -7
3y = 4[-7 + 21y]
3y = [-7 * 4 + 21y * 4]
3y = [-28 + 84y]

Solving
3y = -28 + 84y

Solving for variable 'y'.

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

Add '-84y' to each side of the equation.
3y + -84y = -28 + 84y + -84y

Combine like terms: 3y + -84y = -81y
-81y = -28 + 84y + -84y

Combine like terms: 84y + -84y = 0
-81y = -28 + 0
-81y = -28

Divide each side by '-81'.
y = 0.3456790123

Simplifying
y = 0.3456790123

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