The price of a necklace was increased by 10% to £150. what was the price before the increase
2 answers:
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First, substitute 4 into x
Then multiply 4 times 4
Subtract 2
Then subtract 5 from both sides
Then multiply 4 times 4
Subtract 2
Then subtract 5 from both sides
Answer:
y = -2x + 7
Step-by-step explanation:
P.S: I solved it twice to show you that it doesn't matter which point you choose, you will get the same result.
But it is important when you calculate the slope
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)
