Question

3 x minus 1 y equal to 40 and 4 x minus 2 y equal to 50

Answer 1

Answer:

x=15 , y=5

Step-by-step explanation:

3x-y=40

4x-2y=50

3x-y=40------*4

4x-2y=50------*3

12x-4y=160

12x-6y=150

_(-)__(+)_(-)______

0+ 2y. = 10

y=5

by substituting y

3x-y=40

3x-5=40

3x=45

x=15