(3x-10)-(10x+9)=

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Solution for (3x-10)-(10x+9)= equation:


Simplifying
(3x + -10) + -1(10x + 9) = 0

Reorder the terms:
(-10 + 3x) + -1(10x + 9) = 0

Remove parenthesis around (-10 + 3x)
-10 + 3x + -1(10x + 9) = 0

Reorder the terms:
-10 + 3x + -1(9 + 10x) = 0
-10 + 3x + (9 * -1 + 10x * -1) = 0
-10 + 3x + (-9 + -10x) = 0

Reorder the terms:
-10 + -9 + 3x + -10x = 0

Combine like terms: -10 + -9 = -19
-19 + 3x + -10x = 0

Combine like terms: 3x + -10x = -7x
-19 + -7x = 0

Solving
-19 + -7x = 0

Solving for variable 'x'.

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

Add '19' to each side of the equation.
-19 + 19 + -7x = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -7x = 0 + 19
-7x = 0 + 19

Combine like terms: 0 + 19 = 19
-7x = 19

Divide each side by '-7'.
x = -2.714285714

Simplifying
x = -2.714285714

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