What is equivalent to 9?
9/1 = 9
9/1 is equivalent to 9.
Answer:
11x -8y = -9
Step-by-step explanation:
8x-4y=-4
-3x+4y=5
Subtract the second equation from the first
8x-4y=-4
-(-3x+4y=5)
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Distribute the minus sign
8x-4y=-4
+(3x-4y=-5)
-----------------------------
11x -8y = -9
Answer:

Step-by-step explanation:
z=5x-11y
+11y on both sides
z+11y=x
divide by 5 on both sides
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Answer:
b)4 11/10
Step-by-step explanation:
Answer:
1:3
Step-by-step explanation:
The required ratio will be ,
7:21
= 1 :3