4+3(x+7)=x+9

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Solution for 4+3(x+7)=x+9 equation:


Simplifying
4 + 3(x + 7) = x + 9

Reorder the terms:
4 + 3(7 + x) = x + 9
4 + (7 * 3 + x * 3) = x + 9
4 + (21 + 3x) = x + 9

Combine like terms: 4 + 21 = 25
25 + 3x = x + 9

Reorder the terms:
25 + 3x = 9 + x

Solving
25 + 3x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
25 + 3x + -1x = 9 + x + -1x

Combine like terms: 3x + -1x = 2x
25 + 2x = 9 + x + -1x

Combine like terms: x + -1x = 0
25 + 2x = 9 + 0
25 + 2x = 9

Add '-25' to each side of the equation.
25 + -25 + 2x = 9 + -25

Combine like terms: 25 + -25 = 0
0 + 2x = 9 + -25
2x = 9 + -25

Combine like terms: 9 + -25 = -16
2x = -16

Divide each side by '2'.
x = -8

Simplifying
x = -8

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