There is no solution is the answer. I had this in one of my math tests so I'm positive it's correct :D
Answer:
A.6:8
B.8:14
Step-by-step explanation:
Answer:
Exact form: 44/15
Decimal form: 2.93 repeating
Mixed number form: 2 14/15
Step-by-step explanation:
Answer:
38
Step-by-step explanation:
32 minus 3x4 which is 12
and you get 20
add 18
and you get 38
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