Question

Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
a = 3b - 4
a + b =16

Answer 1

a = 11, b=5
3b-4+b = 16
4b-4=16
4b=20
b=5
a=3(5)-4

Answer 2

frm first eqn a = 3b-4
substitute in second eqn
3b - 4 + b = 16
4b = 16+4
b = 20/4 = 5

Answer 3

a = 3b - 4
a + b =16
3b-4+b=16
4b=20
b=5
a=3(5)-4
a=15-4=11

Answer 4

substitute b = 5 in second eqn
a + 5 = 16
a = 16-5
a = 11

Answer 5

i need the answer? please

Answer 6

helpppppp

Answer 7

your asking for it in (x,y) form but you give us a and b. is a=x and b=y? if so then (11,5) if not then we need to know more

Answer 8

(a,b) = (11,5)