Answer:
f = 40
Step-by-step explanation:
f=3c+19
Let c = 7
f = 3*7 +19
Multiply first
f = 21+19
f = 40
Answer:
reactivity
reactivity
Step-by-step explanation:
Answer:
step 1. x = 2y - 4 on the 1st equation
step 2. 5(2y- 4) - 6y +18 = 0 plug x from 1st equation into the 2nd equation
step 3. 10y - 20 - 6y + 18 = 0
step 4. 4y - 2 = 0
step 5. y = 1/2
step 6. x = -3 plug y into 1st equation
step 7. (-3, 1/2) is the answer.
2y to the second power= 4y
-6y to the second power= -36y
Yes. that is the correct answer
