Question

Use addition to solve the linear system of equations. Include all of your work in your final answer Зx — у = 6 y = x - 4

Answer 1

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3x - y = 6

y = x - 4 or x - y = 4

3x - y = 6 Equation 1

x - y = 4 Equation 2

Multiply equation 2 by -1

3x - y = 6

-x + y = -4

2x + 0 = 2

x = 2/2

x = 1

Find y

y = 1 - 4

y = -3

Solution

x = 1, y = -3