4x+9=-3(x+1)

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Solution for 4x+9=-3(x+1) equation:


Simplifying
4x + 9 = -3(x + 1)

Reorder the terms:
9 + 4x = -3(x + 1)

Reorder the terms:
9 + 4x = -3(1 + x)
9 + 4x = (1 * -3 + x * -3)
9 + 4x = (-3 + -3x)

Solving
9 + 4x = -3 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
9 + 4x + 3x = -3 + -3x + 3x

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

Combine like terms: -3x + 3x = 0
9 + 7x = -3 + 0
9 + 7x = -3

Add '-9' to each side of the equation.
9 + -9 + 7x = -3 + -9

Combine like terms: 9 + -9 = 0
0 + 7x = -3 + -9
7x = -3 + -9

Combine like terms: -3 + -9 = -12
7x = -12

Divide each side by '7'.
x = -1.714285714

Simplifying
x = -1.714285714

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