The second equation because they all have a common factor of 3. You can get x by itself. However, with the first one, you'll end up with fractions instead.
Answer:
15
Step-by-step explanation:
take the triangle away from the square you will get 9 for the square 3x3 you get the 3 from 7 because 7-3=4 the 4 if for the triangle 4x3=12 divided by 2 bc its a triangle u get 6 6+9=15
Answer:
n = -2
Step-by-step explanation:
add 7 to both sides
1+8n = -15
subtract 1 from both sides
8n = -16
divide both sides by 8
n = -2
you multiply 35 to 72 to get 2520 and then multiply 23 to 94=2139 add both of the answers to get 4659
Answer:
39
Step-by-step explanation:
