3[x+4]=-7x

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Solution for 3[x+4]=-7x equation:


Simplifying
3[x + 4] = -7x

Reorder the terms:
3[4 + x] = -7x
[4 * 3 + x * 3] = -7x
[12 + 3x] = -7x

Solving
12 + 3x = -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
12 + 3x + 7x = -7x + 7x

Combine like terms: 3x + 7x = 10x
12 + 10x = -7x + 7x

Combine like terms: -7x + 7x = 0
12 + 10x = 0

Add '-12' to each side of the equation.
12 + -12 + 10x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 10x = 0 + -12
10x = 0 + -12

Combine like terms: 0 + -12 = -12
10x = -12

Divide each side by '10'.
x = -1.2

Simplifying
x = -1.2

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