Answer:
<em>Briana's thinking is incorrect because the numbers are different when you substitute x with numbers other than 0.</em>
the two equations that are equivalent to each other are,
<u><em>5x+x−4 and 9x-3x-4</em></u>
Step-by-step explanation:
Expression A: 9x−3x−4
Expression B: 12x−4
Expression C: 5x+x−4
First I will substitute x for each of the equations.
9x-3x-4
when x equals: , then y equals:
1 = 9(1)-3(1)-4= 2
2 = 9(2)-3(2)-4=8
3 = 9(3)-3(3)-4= 14
Now for 12x-4
when x equals: , then y equals:
1 = 12(1)-4= 8
2 = 12(2)-4= 20
3 = 12(3)-4= 32
And for the final equation:
5x+x−4
when x equals: , then y equals:
1 = 5(1)+(1)−4= 2
2 = 5(2)+(2)−4 = 8
3 = 5(3)+(3)−4=14
Based on this you can now see that the two equations that are equal are:
<u><em>5x+x−4 and 9x-3x-4</em></u>
<em>~CaityConcerto</em>
Answer:
n=0
Step-by-step explanation:
4(0) +5(0)=
0+0=
0
Answer:
B
Step-by-step explanation:
This is problem #9. I'm not sure how to solve #10, although the solution may be found in a similar way.
