I may be wrong but 5-8 years old
Answer:
x=-9
Step-by-step explanation:
1. 7-3x=34
2. Subtract 7 from both sides to get -3x=27
3. Divide by -3 from both sides to get x by itself which turns out to be x=-9, for 27÷(-3)=-9
Answer:
x = - 4, y = 7
Step-by-step explanation:
Given the 2 equations
- 7x - 2y = 14 → (1)
6x + 6y = 18 → (2)
Multiplying (1) by 3 and adding to (2) will eliminate the y- term
- 21x - 6y = 42 → (3)
Add (2) and (3) term by term to eliminate y
- 15x = 60 ( divide both sides by 15 )
x = - 4
Substitute x = - 4 into either of the 2 equations and evaluate for y
Substituting into (2)
6(- 4) + 6y = 18
- 24 + 6y = 18 ( add 24 to both sides )
6y = 42 ( divide both sides by 6 )
y = 7
The length of the rectangle is 22.5
Answer:
The fourth graph shows and exponential growth function.
Step-by-step explanation:
The last graph shows the value increasing by a large amount.
