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Q: How do you solve 7x plus 2y equals -3?

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2y + 7x + y-1?

The standard form is 7x + 2y - 3 = 0

Double first equation: 10x + 2y = 10Subtract second equation: 7x = 7x = 1, y = 0

7x = -3y + 12

Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19

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2y + 7x + y-1?

-7x - 2y = -3

The standard form is 7x + 2y - 3 = 0

This equation is unsolvable without knowing one of the values of either x or y.

Double first equation: 10x + 2y = 10Subtract second equation: 7x = 7x = 1, y = 0

7x = -3y + 12

Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19

7x-2y = 14 -2y = -7x+14 y = 3.5x-7

7x + y = 4y = 4 - 7x

7x + 2 = 5,6

3x - 2y + 7x + 4y = 3x + 7x - 2y +4y = (3+7)x + (-2+4)y = 10x + 2y

Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.

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