4(9)=9(9+x)

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


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

Multiply 4 * 9
36 = 9(9 + x)
36 = (9 * 9 + x * 9)
36 = (81 + 9x)

Solving
36 = 81 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
36 + -9x = 81 + 9x + -9x

Combine like terms: 9x + -9x = 0
36 + -9x = 81 + 0
36 + -9x = 81

Add '-36' to each side of the equation.
36 + -36 + -9x = 81 + -36

Combine like terms: 36 + -36 = 0
0 + -9x = 81 + -36
-9x = 81 + -36

Combine like terms: 81 + -36 = 45
-9x = 45

Divide each side by '-9'.
x = -5

Simplifying
x = -5

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