Question

Solve the system, using substitution. One point for correct steps, one point for correct ordered pair.
x = 4y and 2x + 3y = 44
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

Since x = 4y ----- equation 1
2x + 3y = 44 ----- equation 2
Substitute for x in equation 2
that is, 2(4y) + 3y = 44
8y + 3y = 44
11y = 44
y = 44/11
y = 11
substituting y in equation 1 then,

x = 4(11)
x = 44