When solving the system x + 2y = 9 and x - y = 6 by substitution, what can be substituted for x in the second equation?
1 answer:
X+2y = 9 ---------eq.1
x-y =6 ----------- eq.2
x = 9 -2y (from eq. 1)
Now substitute the value of x in the second eq.2
9-2y-y =6
-3y = -3
y =1
So,
x +2 (1)= 9
x= 7
You might be interested in
B, im hundred percent sure its right
Answer: i think the answer is 320
Step-by-step explanation:
i say 320 because a square has 4 sides and there is 80 yards so all i did is multiply 80 x 4 = 320
I don’t understand the question.
285 inches = 7.91667 yards
so if you round up they are equal but if you don't they are not equal
Answer:
B i think
Step-by-step explanation:
