First you do 50 - 32 an that equals 13, so your answer is 13
total that play football = 40
30 of them play basket ball
the missing number is 40 - 30 = 10
Eliminate the x terms: Multiply the second equation by 2
-10x+12y=20
Add it to the first equation
10x-4y=-8
-10x+12y=20
——————-
0x+8y=12
y = 1.5
10x-4(1.5)=-8
10x = -2
x = -1/5
