4[5x+7x]+2=-18

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Solution for 4[5x+7x]+2=-18 equation:


Simplifying
4[5x + 7x] + 2 = -18

Combine like terms: 5x + 7x = 12x
4[12x] + 2 = -18

Remove brackets around [12x]
4 * 12x + 2 = -18

Multiply 4 * 12
48x + 2 = -18

Reorder the terms:
2 + 48x = -18

Solving
2 + 48x = -18

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 48x = -18 + -2

Combine like terms: 2 + -2 = 0
0 + 48x = -18 + -2
48x = -18 + -2

Combine like terms: -18 + -2 = -20
48x = -20

Divide each side by '48'.
x = -0.4166666667

Simplifying
x = -0.4166666667

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