Question

Solve by multiplication and addition. Show each step of your work.

x - 4y = -10
3x + 2y = 12​

Answer 1

Answer:

let's multiply the ii eq 3x+2y=12 by 2

6x+4y=24. eq(iii)

now add both i and iii

6x+4y=24

x - 4y=-10

__________

7x =14

x=14/7

x= 2

to find value of y

put the value of x in eq i

x-4y=-10

2-4*y=-10

-4y=-10+2

-4y= -8

y =-8/-4

y=2