Question

Y+2x=7 and x=3+y
Solve each system of equations using substitution

Answer 1

y+2x=7 (1)

x=3+y (2)

Replace x = 3+y (2) into (1) => y+2(3+y) = 7

=> y = 1/3 and x = 3+1/3 =10/3

Explanation: