7(3-x)-5(3-2y)-4(9-y)=3(y+5)

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Solution for 7(3-x)-5(3-2y)-4(9-y)=3(y+5) equation:


Simplifying
7(3 + -1x) + -5(3 + -2y) + -4(9 + -1y) = 3(y + 5)
(3 * 7 + -1x * 7) + -5(3 + -2y) + -4(9 + -1y) = 3(y + 5)
(21 + -7x) + -5(3 + -2y) + -4(9 + -1y) = 3(y + 5)
21 + -7x + (3 * -5 + -2y * -5) + -4(9 + -1y) = 3(y + 5)
21 + -7x + (-15 + 10y) + -4(9 + -1y) = 3(y + 5)
21 + -7x + -15 + 10y + (9 * -4 + -1y * -4) = 3(y + 5)
21 + -7x + -15 + 10y + (-36 + 4y) = 3(y + 5)

Reorder the terms:
21 + -15 + -36 + -7x + 10y + 4y = 3(y + 5)

Combine like terms: 21 + -15 = 6
6 + -36 + -7x + 10y + 4y = 3(y + 5)

Combine like terms: 6 + -36 = -30
-30 + -7x + 10y + 4y = 3(y + 5)

Combine like terms: 10y + 4y = 14y
-30 + -7x + 14y = 3(y + 5)

Reorder the terms:
-30 + -7x + 14y = 3(5 + y)
-30 + -7x + 14y = (5 * 3 + y * 3)
-30 + -7x + 14y = (15 + 3y)

Solving
-30 + -7x + 14y = 15 + 3y

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + -7x + 30 + 14y = 15 + 30 + 3y

Reorder the terms:
-30 + 30 + -7x + 14y = 15 + 30 + 3y

Combine like terms: -30 + 30 = 0
0 + -7x + 14y = 15 + 30 + 3y
-7x + 14y = 15 + 30 + 3y

Combine like terms: 15 + 30 = 45
-7x + 14y = 45 + 3y

Add '-14y' to each side of the equation.
-7x + 14y + -14y = 45 + 3y + -14y

Combine like terms: 14y + -14y = 0
-7x + 0 = 45 + 3y + -14y
-7x = 45 + 3y + -14y

Combine like terms: 3y + -14y = -11y
-7x = 45 + -11y

Divide each side by '-7'.
x = -6.428571429 + 1.571428571y

Simplifying
x = -6.428571429 + 1.571428571y

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