Answer:
x=3
Step-by-step explanation:
3x-6x+7=-2
subtract 7 from both sides
3x-6x=-9
-3x=-9
3x=9
x=3
Answer:
4
Step-by-step explanation:
6a+16
Explanation:
If there's just a variable, there's an understood 1 in front of it. So what that really says is:
7a-1a+16
So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.
6a+16
:^)
Y=5x-4
3y=15x-8
3(5x-4)=15x-8
15x-12=15x-8
??
Therefore, there is no solution.