3x+2(y-5)=21

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Solution for 3x+2(y-5)=21 equation:


Simplifying
3x + 2(y + -5) = 21

Reorder the terms:
3x + 2(-5 + y) = 21
3x + (-5 * 2 + y * 2) = 21
3x + (-10 + 2y) = 21

Reorder the terms:
-10 + 3x + 2y = 21

Solving
-10 + 3x + 2y = 21

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 3x + 10 + 2y = 21 + 10

Reorder the terms:
-10 + 10 + 3x + 2y = 21 + 10

Combine like terms: -10 + 10 = 0
0 + 3x + 2y = 21 + 10
3x + 2y = 21 + 10

Combine like terms: 21 + 10 = 31
3x + 2y = 31

Add '-2y' to each side of the equation.
3x + 2y + -2y = 31 + -2y

Combine like terms: 2y + -2y = 0
3x + 0 = 31 + -2y
3x = 31 + -2y

Divide each side by '3'.
x = 10.33333333 + -0.6666666667y

Simplifying
x = 10.33333333 + -0.6666666667y

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