Question

Helpp!! solve the system of equations using substitution

3x + 2y = 7
x = 3y + 6

1. ( 0, -2 )
2. ( 1, 2 )
3. ( 3, -1 )
4. ( 6, 0 )

Answer 1

Answer is (3,-1) I’m gonna tell you the steps so you can try it out to see if you get the same answer but what you would do is first rearrange the second equation so that it is lay out the same as the first one with an integer (whole number like 6 or 7) at the end of the equal sign. Then you would try get two values the same so either x the second value by 3 to get the x’s the same. Minus them from each other and then divide to get the x value on its own ( you could do the same method with the y value) Finally take one of the equations and substitute the x value/y value in and solve

Answer 2

3. ( 3, -1 )

Explanation: