7(y+3x)-15=4(y-3)+3x

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Solution for 7(y+3x)-15=4(y-3)+3x equation:


Simplifying
7(y + 3x) + -15 = 4(y + -3) + 3x

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

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

Reorder the terms:
-15 + 21x + 7y = 4(-3 + y) + 3x
-15 + 21x + 7y = (-3 * 4 + y * 4) + 3x
-15 + 21x + 7y = (-12 + 4y) + 3x

Reorder the terms:
-15 + 21x + 7y = -12 + 3x + 4y

Solving
-15 + 21x + 7y = -12 + 3x + 4y

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-15 + 21x + -3x + 7y = -12 + 3x + -3x + 4y

Combine like terms: 21x + -3x = 18x
-15 + 18x + 7y = -12 + 3x + -3x + 4y

Combine like terms: 3x + -3x = 0
-15 + 18x + 7y = -12 + 0 + 4y
-15 + 18x + 7y = -12 + 4y

Add '15' to each side of the equation.
-15 + 18x + 15 + 7y = -12 + 15 + 4y

Reorder the terms:
-15 + 15 + 18x + 7y = -12 + 15 + 4y

Combine like terms: -15 + 15 = 0
0 + 18x + 7y = -12 + 15 + 4y
18x + 7y = -12 + 15 + 4y

Combine like terms: -12 + 15 = 3
18x + 7y = 3 + 4y

Add '-7y' to each side of the equation.
18x + 7y + -7y = 3 + 4y + -7y

Combine like terms: 7y + -7y = 0
18x + 0 = 3 + 4y + -7y
18x = 3 + 4y + -7y

Combine like terms: 4y + -7y = -3y
18x = 3 + -3y

Divide each side by '18'.
x = 0.1666666667 + -0.1666666667y

Simplifying
x = 0.1666666667 + -0.1666666667y

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