Answer:
Yes
Step-by-step explanation:
To determine is an ordered pair is a solution to the system of equations, substitute its coordinates into each of the equations.
An ordered pair is written in the form (x, y), so x=1 and y=2.
y = -2x +4
2 = -2(1) + 4 <=simplify this by multiplying (-2)(1)
2 = -2 + 4 <= add
2 = 2 <= same answers
LS = RS
7x - 2y = 3
7(1) - 2(2) = 3 <=simplify this but multiplying 7(1) and 2(2)
7 - 4 = 3 <= subtract
3 = 3 <= same answers
LS = RS
Since (1, 2) satisfies both of the equations, it is a soltuion to the system of equations.
