your answer would be 9 fish are left in the tank
1. SUBTRACTION
inverse means opposite. The opposite of addition is SUBTRACTION.
2. 4.25x + 7 = 24
a) 4
b) 2.125
c) 7
d) 20
All these values (as shown above) are what x is like when added up together. The first one (a) is correct. The others are wrong.
PLEASE DO RATE ME AS BRAINLIEST ^ω^
The ANWSER is B hope this helps
Okay, so since both y values share the same number, let's add both equations so the y values cancel out leaving us to solve for x.
10x+(-5x)=5x
7y+(-7y)=0
1+24=25
Now we have 5x=25
divide both sides by 5 and we have x=5
Now that we know x=5, we can plug it into one of the problems to find y.
Let's do 10(5) +7y=1
50+7y=1 subtract 5 and we get 7y=-49
divide -7 from both sides and we get y=-7
so there you have it x=5 and y=-7
