Lucy’s order at the restaurant came out to $44.20. She decided to leave a 15% tip for the waitress. What is the overall total am
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Answer:
Solving this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 we get x=2 and y=-3
Solution set = {2,-3}
Step-by-step explanation:
We need to solve this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7
let:
Finding value of x from equation 2 and putting in eq(1)
Putting value of x in eq(1)
So, we get y=-3
Now put value of y in equation 2 to find value of x
So, we get value of x =2
So, solving this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 we get x=2 and y=-3
Solution set = {2,-3}