Answer: 
Step-by-step explanation:

Subtract 15 from both sides.

Multiply by -8 to isolate a.
NOTE: When you multiply or divide by negative numbers, the inequality sign flips.


6 7/8. You must get a common denominater. I used 8, which multiplis 4 times 2. Then the top number is multiplied by 2 to get 2/8. Now add the tops and bottoms to get 7/8. Now add the whole numbers to get 6.
Answer:
Third answer shown
Step-by-step explanation:
Since each equation has a right side equal to the same thing, y, those right sides must be equal to each other.
x + 3 = -2x + 6
Add 2x to both sides. 2x 2x
3x + 3 = 0 + 6
3x + 3 = 6
Subtract 3 on both sides. -3 -3
3x = 3
Divide both sides by 3. x = 1
Now, let's see what y must be if x equals 1.
Line M: y = x + 3 --> y = 1 + 3 --> y = 4
Line N: y = -2x +6 --> y = -2(1) +6 --> y = -2 + 6 --> y = 4, confirmed
So the ordered pair (x, y) that satisfies <u><em>both </em></u>equations is (1, 4)
*** This means that if you graphed both lines on an xy-coordinate plane, the point (1,4) would be the point where the two lines intersect.
That is the third answer shown.
Is there a picture? because we need to see in order to answer
21/25 would be the answer