7-2[3x-(7x-9)]=

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Solution for 7-2[3x-(7x-9)]= equation:


Simplifying
7 + -2[3x + -1(7x + -9)] = 0

Reorder the terms:
7 + -2[3x + -1(-9 + 7x)] = 0
7 + -2[3x + (-9 * -1 + 7x * -1)] = 0
7 + -2[3x + (9 + -7x)] = 0

Reorder the terms:
7 + -2[9 + 3x + -7x] = 0

Combine like terms: 3x + -7x = -4x
7 + -2[9 + -4x] = 0
7 + [9 * -2 + -4x * -2] = 0
7 + [-18 + 8x] = 0

Combine like terms: 7 + -18 = -11
-11 + 8x = 0

Solving
-11 + 8x = 0

Solving for variable 'x'.

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

Add '11' to each side of the equation.
-11 + 11 + 8x = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 8x = 0 + 11
8x = 0 + 11

Combine like terms: 0 + 11 = 11
8x = 11

Divide each side by '8'.
x = 1.375

Simplifying
x = 1.375

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