Answer:
3+7-4=6
Step-by-step explanation:
replace the h with -7.
3+ [-(-7)]+(-4)
simplify. two negatives make a positive, causing the [-(-7)] to simply become 7.
the +(-4) simplifies to -4.
so...
3+7-4
from here its really really easy, just simple add and subtract.
3+7=10
10-4=6
If it helped, id really appreciate brainliest :)
Answer:
26 miles per gallon
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
It's 2 because 4^2 is 8 and 1^2 is 2 so that's how I got my answer
Answer: Number one would be 3x+2y+-14 and x+y=-4, second one is x=-3, y=7
Step-by-step explanation:
The first one is solved by inputting the x and y in each one and finding which one comes out true, the second on is solved by substitution. to find x you would subtract x in the first equation and make it y=4-x then input that equation in the y in the second equation.
