Solve by elimination:
4x + 4y = 4
3x + 4y =10

(-6,7)

Step-by-step explanation:

4x+4y=4

(3x+4y=10)-1

4x+4y=4

-3x-4y=-10

x=-6

4(-6)+4y=4

-24+4y=4

4y=28

y=7

(-6,7)

x= -6 and y= 7

Step-by-step explanation:

(4x +4y= 4)1

(3x + 4y=10)2

Subtract equation2 from equation 1 as follows:

x= -6

Substitute x= -6 into equation 1 as follows

4x + 4y =4

4(-6) +4y= 4

-24+4y =4

Collect like terms as follows:

4y= 4+24

4y= 28

Divide both sides by 4

y= 7

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.