7x+4(x-9)=30

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Solution for 7x+4(x-9)=30 equation:


Simplifying
7x + 4(x + -9) = 30

Reorder the terms:
7x + 4(-9 + x) = 30
7x + (-9 * 4 + x * 4) = 30
7x + (-36 + 4x) = 30

Reorder the terms:
-36 + 7x + 4x = 30

Combine like terms: 7x + 4x = 11x
-36 + 11x = 30

Solving
-36 + 11x = 30

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + 11x = 30 + 36

Combine like terms: -36 + 36 = 0
0 + 11x = 30 + 36
11x = 30 + 36

Combine like terms: 30 + 36 = 66
11x = 66

Divide each side by '11'.
x = 6

Simplifying
x = 6

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