Y = x - 6
Please let me know if you need explanation.
Answer:
-63
Step-by-step explanation:
Add 7 to both sides
X/-3 -7 =14
+7 +7
‐-------------------
X/-3= 21. ( multiply both sides by -3 to isolate x)
X/-3 × 3= 21 ×-3
X= -63
Answer:
7) B
8) C
9) C
10) C
Step-by-step explanation:
I just did it
Answer: 31 nickels and 29 dimes
<u>Step-by-step explanation:</u>
Nickels (.05): x
Dimes (.10): y
Value: .05x + .10y = 4.45 → -20(.05x + .10y = 4.45) → -x - 2y = -89
Quantity: x + y = 60 → 1(x + y = 60) → <u> x + y </u> = <u> 60 </u>
-y = -29
y = 29
Next, substitute "29" for "y" into either equation and solve for "x":
x + y = 60
x + 29 = 60
x = 31
Answer:
oh ok.
Step-by-step explanation: