Answer:
21
Step-by-step explanation:
21-12=9
Answer: D - 15/17
Explanation: it is the only answer that keeps continuing on forever when divided
Answer:
2
Step-by-step explanation:
it may not be right because i guessed
1. The correct statement is the first one, which is: <span>Add the two equations, solve for y, and then substitute –1 for y to find x.
</span>
2. Therefore, you have the following system of equations:
<span>
4x+8y=20
-4x+2y= -30
3. When you a</span>dd the two equations, and clear the variable "y", you obtain:
10y=-10
y=-1
4. Now, you must substitute -1 for y (y=-1) to find x, as below:
4x+8y=20
4x+8(-1)=20
4x-8=20
4x=20+8
4x=28
x=28/4
x=7
(If you are)- Solving The Equation
1. Multiply both sides by eight over three
8/3•1/2 = 8/3•3/8 which gives you 4/3.
2. Swap the sides of the equation
4/3=y turns into y= 4/3 and that’s your answer. (y=4/3).
(Or if you’re working on)- Rewrite In Standard Form
Swap 1/2 and 3/8y , so it should be 3/8y=1/2.
Then multiply both sides by 8/3, and that should give you y=4/3.
Then multiply both sides of the equation by 3, and that should give you 3y = 4. And 3y=4 would be your answer.
Hope these helped! :)
