Answer:
Step-by-step explanation:
x = y - 7 ---------------------(1)
-y - 2x = 8 --------------------(2)
Put Equation (1) into (2)
- y - 2 ( y-7 ) = 8
-y - 2y + 14 = 8
-3y = 8 - 14
-3y = -6
Divide -3 to both sides
y = -6 / -3
y = 2
Put y = 2 in (1)
x = 2 - 7
x = -5
So,
x = -5 , y = 2
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
2*3+-1
6-1
5=5
the answer is b (3,-1)
3-5=-2. 2×4=8. 8×-2=-16 the answer is -16
The price will be 600*0.7 - 35, or 420-35, which simplifies to 395. The final price on the TV will be $395.00.
Answer:
Step-by-step explanation:
1) (1÷5)*5*14 = 
= 1*14 = 14
2) 6 + 4(19 - 5) = 6 + 4 * 14
= 6 + 56
= 62
Or
Use distributive property. a(b+c) = a*b + a*c
6 + 4( 19 - 5) = 6 + 4* 19 - 4*5
= 6 + 76 - 20
= 82 - 20
= 62
3) 5(14- 5) + 6 (3 +7) = 5 * 9 + 6 *10
= 54 + 60
= 114
