7x+1-y-3x-(-9)=

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Solution for 7x+1-y-3x-(-9)= equation:


Simplifying
7x + 1 + -1y + -3x + -1(-9) = 0

Multiply -1 * -9
7x + 1 + -1y + -3x + 9 = 0

Reorder the terms:
1 + 9 + 7x + -3x + -1y = 0

Combine like terms: 1 + 9 = 10
10 + 7x + -3x + -1y = 0

Combine like terms: 7x + -3x = 4x
10 + 4x + -1y = 0

Solving
10 + 4x + -1y = 0

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + 4x + -10 + -1y = 0 + -10

Reorder the terms:
10 + -10 + 4x + -1y = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 4x + -1y = 0 + -10
4x + -1y = 0 + -10

Combine like terms: 0 + -10 = -10
4x + -1y = -10

Add 'y' to each side of the equation.
4x + -1y + y = -10 + y

Combine like terms: -1y + y = 0
4x + 0 = -10 + y
4x = -10 + y

Divide each side by '4'.
x = -2.5 + 0.25y

Simplifying
x = -2.5 + 0.25y

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