4x+3[7+2(x-3)]=84

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Solution for 4x+3[7+2(x-3)]=84 equation:


Simplifying
4x + 3[7 + 2(x + -3)] = 84

Reorder the terms:
4x + 3[7 + 2(-3 + x)] = 84
4x + 3[7 + (-3 * 2 + x * 2)] = 84
4x + 3[7 + (-6 + 2x)] = 84

Combine like terms: 7 + -6 = 1
4x + 3[1 + 2x] = 84
4x + [1 * 3 + 2x * 3] = 84
4x + [3 + 6x] = 84

Reorder the terms:
3 + 4x + 6x = 84

Combine like terms: 4x + 6x = 10x
3 + 10x = 84

Solving
3 + 10x = 84

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 10x = 84 + -3

Combine like terms: 3 + -3 = 0
0 + 10x = 84 + -3
10x = 84 + -3

Combine like terms: 84 + -3 = 81
10x = 81

Divide each side by '10'.
x = 8.1

Simplifying
x = 8.1

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