4(7-y)=(4*7)-(4-y)

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Solution for 4(7-y)=(4*7)-(4-y) equation:


Simplifying
4(7 + -1y) = (4 * 7) + -1(4 + -1y)
(7 * 4 + -1y * 4) = (4 * 7) + -1(4 + -1y)
(28 + -4y) = (4 * 7) + -1(4 + -1y)

Multiply 4 * 7
28 + -4y = (28) + -1(4 + -1y)
28 + -4y = 28 + -1(4 + -1y)
28 + -4y = 28 + (4 * -1 + -1y * -1)
28 + -4y = 28 + (-4 + 1y)

Combine like terms: 28 + -4 = 24
28 + -4y = 24 + 1y

Solving
28 + -4y = 24 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
28 + -4y + -1y = 24 + 1y + -1y

Combine like terms: -4y + -1y = -5y
28 + -5y = 24 + 1y + -1y

Combine like terms: 1y + -1y = 0
28 + -5y = 24 + 0
28 + -5y = 24

Add '-28' to each side of the equation.
28 + -28 + -5y = 24 + -28

Combine like terms: 28 + -28 = 0
0 + -5y = 24 + -28
-5y = 24 + -28

Combine like terms: 24 + -28 = -4
-5y = -4

Divide each side by '-5'.
y = 0.8

Simplifying
y = 0.8

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