7(5x-4)-3y=20

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Solution for 7(5x-4)-3y=20 equation:


Simplifying
7(5x + -4) + -3y = 20

Reorder the terms:
7(-4 + 5x) + -3y = 20
(-4 * 7 + 5x * 7) + -3y = 20
(-28 + 35x) + -3y = 20

Solving
-28 + 35x + -3y = 20

Solving for variable 'x'.

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

Add '28' to each side of the equation.
-28 + 35x + 28 + -3y = 20 + 28

Reorder the terms:
-28 + 28 + 35x + -3y = 20 + 28

Combine like terms: -28 + 28 = 0
0 + 35x + -3y = 20 + 28
35x + -3y = 20 + 28

Combine like terms: 20 + 28 = 48
35x + -3y = 48

Add '3y' to each side of the equation.
35x + -3y + 3y = 48 + 3y

Combine like terms: -3y + 3y = 0
35x + 0 = 48 + 3y
35x = 48 + 3y

Divide each side by '35'.
x = 1.371428571 + 0.08571428571y

Simplifying
x = 1.371428571 + 0.08571428571y

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