5/5 is 1/1 but the simplest form is just 1
Answer:
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Step-by-step explanation:
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20x+ 5y = 15
Move 20x to the other side. Sign changes from +20x to -20x
20x-20x+5y=-20x+15
5y=-20x+15
Divide both sides by 5
5y/5=y ( Cross out 5 and 5, divide by 5, 1*1*y=y)
-20/5=-4x
15/5=3
y=-4x+3 or y=3-4x
Answer: y=-4x+3 or y=3-4x
Step 2: commutative property of multiplication
Step 3: multiplicative inverse
Step 4: multiplicative identity
Answer:
x= 10
I hope i helped, best of luck!
