Answer:
B. (2, 1)
Step-by-step explanation:
Given the simultaneous equation:
2x + 3y = 7 ...... 1
x + y = 3 ....... 2
Using Substitution method
From equation 2:
x = 3 - y .... 3
Substitute equation 3 into 1:
2(3-y) + 3y = 7
Open the bracket
2(3) - 2y + 3y = 7
6 -2y + 3y = 7
6 + y = 7
y = 7-6
y = 1
Substitute y = 1 into x = 3-y
x = 3-1
x =2
Hence the solution to the equation is (2, 1)