6x is an example of a variable
Answer:
A and C divide by 7
Step-by-step explanation:
68÷17=4
357÷17=21
4x+3(5y-x)
Start by multiplying out the brackets
4x+15y-3x
Collect like terms
4x-3x+15y
Subtract the x's
X+15y
Hope this helps!
The answer is C : 2 i worked on this on a school test