Question

Heeeeellllppp
Solve the system, using substitution. One point for correct steps, one point for correct ordered pair, (a,b).
a + b = 4 and 2a + 3b = 11

Answer 1

isolate for a variable in one equation and sub it into the other:
a + b = 4 so b = 4 - a (now sub this into second given equation)
2a + 3 (4 - a) = 11 (now simplify and isolate for a)
2a + 12 - 3a = 11
1 = 1a so a = 1 (now plug a back into first equation to get b)
a + b = 4
(1) + b = 4 so b = 3

Answer 2

Awesome thank you soo much.