Question

Solve the system of equations by substitution: x=2

X+y=10

A. X=2 and y=10
B. x=2 y=4
C. X=2 and y=8
D. X=10 and y=2

Answer 1

Answer: the answer is C because if X=2 then u need a number plus that to equal 10 so basically the only number choice u have is 8 so it means Xv2 and Y=8

Answer 2

C.

Explanation:

X + y = 10

replace with given number

2 + y = 10

then subtract 2 from each side of the equation

2 + y = 10

-2 -2

y = 8