7x-(4x+9)=-15

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Solution for 7x-(4x+9)=-15 equation:


Simplifying
7x + -1(4x + 9) = -15

Reorder the terms:
7x + -1(9 + 4x) = -15
7x + (9 * -1 + 4x * -1) = -15
7x + (-9 + -4x) = -15

Reorder the terms:
-9 + 7x + -4x = -15

Combine like terms: 7x + -4x = 3x
-9 + 3x = -15

Solving
-9 + 3x = -15

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 3x = -15 + 9

Combine like terms: -9 + 9 = 0
0 + 3x = -15 + 9
3x = -15 + 9

Combine like terms: -15 + 9 = -6
3x = -6

Divide each side by '3'.
x = -2

Simplifying
x = -2

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