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

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


Simplifying
5 + -4[5 + -1(7y + -4)] = 0

Reorder the terms:
5 + -4[5 + -1(-4 + 7y)] = 0
5 + -4[5 + (-4 * -1 + 7y * -1)] = 0
5 + -4[5 + (4 + -7y)] = 0

Combine like terms: 5 + 4 = 9
5 + -4[9 + -7y] = 0
5 + [9 * -4 + -7y * -4] = 0
5 + [-36 + 28y] = 0

Combine like terms: 5 + -36 = -31
-31 + 28y = 0

Solving
-31 + 28y = 0

Solving for variable 'y'.

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

Add '31' to each side of the equation.
-31 + 31 + 28y = 0 + 31

Combine like terms: -31 + 31 = 0
0 + 28y = 0 + 31
28y = 0 + 31

Combine like terms: 0 + 31 = 31
28y = 31

Divide each side by '28'.
y = 1.107142857

Simplifying
y = 1.107142857

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