5.4 Solving Systems by Subtraction and substitution Question: 3

Question

Solve the system of equations using subtraction.

4x-3y = 17

10x-3y = 47

___________

​(Type an ordered​ pair.)

Answer 1

10x - 3y = 47

4x - 3y =17 subtract to get

6x = 30

x= 30/6 = 5

3y = 4x-17 = 4(5)-17 = 3

y = 3/3 = 1

(5,1) is the solution