To check the answer, sub in 67 for x and 25 for y in both equations...because for it to be a solution, it has to satisfy both of the equations.
(67,25)...x = 67 and y = 25
x + y = 92
67 + 25 = 92
92 = 92 (correct)
y = 3x - 4
25 = 3(67) - 4
25 = 201 - 4
25 = 197 (incorrect)
so (67,25) is NOT a solution to this system of equations because it does not satisfy both of the equations
Answer:
3 times a number is 3x
decreased by 14 is '- 14'
is 4 is '= 4'
So we have:
3x - 14 = 4
Add 14 to both sides:
3x = 18
Divide 3 to both sides:
x = 6
Step-by-step explanation:
46.8 because you multiply 7.80 times 6 and it gives you the answer