Answer:
yes
Step-by-step explanation:
To determine if (1, 9 ) is a solution, substitute the x- coordinate x = 1 into the right side of both equations and if y = 9 then it is a solution.
y = 5(1) + 4 = 5 + 4 = 9
y = 2(1) + 7 = 2 + 7 = 9
Since both equations values are equal to the y- coordinate of the point, then (1, 9 ) is a solution to the system of equations.
