51-3(7x+2)=4-[3-(2-x)]

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Solution for 51-3(7x+2)=4-[3-(2-x)] equation:


Simplifying
51 + -3(7x + 2) = 4 + -1[3 + -1(2 + -1x)]

Reorder the terms:
51 + -3(2 + 7x) = 4 + -1[3 + -1(2 + -1x)]
51 + (2 * -3 + 7x * -3) = 4 + -1[3 + -1(2 + -1x)]
51 + (-6 + -21x) = 4 + -1[3 + -1(2 + -1x)]

Combine like terms: 51 + -6 = 45
45 + -21x = 4 + -1[3 + -1(2 + -1x)]
45 + -21x = 4 + -1[3 + (2 * -1 + -1x * -1)]
45 + -21x = 4 + -1[3 + (-2 + 1x)]

Combine like terms: 3 + -2 = 1
45 + -21x = 4 + -1[1 + 1x]
45 + -21x = 4 + [1 * -1 + 1x * -1]
45 + -21x = 4 + [-1 + -1x]

Combine like terms: 4 + -1 = 3
45 + -21x = 3 + -1x

Solving
45 + -21x = 3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
45 + -21x + x = 3 + -1x + x

Combine like terms: -21x + x = -20x
45 + -20x = 3 + -1x + x

Combine like terms: -1x + x = 0
45 + -20x = 3 + 0
45 + -20x = 3

Add '-45' to each side of the equation.
45 + -45 + -20x = 3 + -45

Combine like terms: 45 + -45 = 0
0 + -20x = 3 + -45
-20x = 3 + -45

Combine like terms: 3 + -45 = -42
-20x = -42

Divide each side by '-20'.
x = 2.1

Simplifying
x = 2.1

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