Question

Solve this system of equations using substitution. x=4 3x−y=−1

Answer 1

Explanation:

Here you go mate

Step 1

x=4

Step 2

3x-y=-1 Substitute 4 for x

(3)(4)-y=-1

-y=-13

Step 3

-y=-13 Divide both sides

answer

y=13

Answer 2

y=13

Explanation:

12-y=-1

-y=-13

y=13