(z-7x+4y-2)-(2y-9x+4)=

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Solution for (z-7x+4y-2)-(2y-9x+4)= equation:


Simplifying
(z + -7x + 4y + -2) + -1(2y + -9x + 4) = 0

Reorder the terms:
(-2 + -7x + 4y + z) + -1(2y + -9x + 4) = 0

Remove parenthesis around (-2 + -7x + 4y + z)
-2 + -7x + 4y + z + -1(2y + -9x + 4) = 0

Reorder the terms:
-2 + -7x + 4y + z + -1(4 + -9x + 2y) = 0
-2 + -7x + 4y + z + (4 * -1 + -9x * -1 + 2y * -1) = 0
-2 + -7x + 4y + z + (-4 + 9x + -2y) = 0

Reorder the terms:
-2 + -4 + -7x + 9x + 4y + -2y + z = 0

Combine like terms: -2 + -4 = -6
-6 + -7x + 9x + 4y + -2y + z = 0

Combine like terms: -7x + 9x = 2x
-6 + 2x + 4y + -2y + z = 0

Combine like terms: 4y + -2y = 2y
-6 + 2x + 2y + z = 0

Solving
-6 + 2x + 2y + z = 0

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 2x + 2y + 6 + z = 0 + 6

Reorder the terms:
-6 + 6 + 2x + 2y + z = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 2x + 2y + z = 0 + 6
2x + 2y + z = 0 + 6

Combine like terms: 0 + 6 = 6
2x + 2y + z = 6

Add '-2y' to each side of the equation.
2x + 2y + -2y + z = 6 + -2y

Combine like terms: 2y + -2y = 0
2x + 0 + z = 6 + -2y
2x + z = 6 + -2y

Add '-1z' to each side of the equation.
2x + z + -1z = 6 + -2y + -1z

Combine like terms: z + -1z = 0
2x + 0 = 6 + -2y + -1z
2x = 6 + -2y + -1z

Divide each side by '2'.
x = 3 + -1y + -0.5z

Simplifying
x = 3 + -1y + -0.5z

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