Answer:
x=5
Step-by-step explanation:
x+2x=15
Combine like terms:
3x=15
Divide both sides by 3:
x=15/3=5
Hope this helps!
The third one is a point with the first equation.
I had to simplify the second equation.
It simplified to,

The second one with the above is didn't go through so I'd say no solution.
Chad makes $10 per yard, and he makes 3 yards
3 x 10 = 30
Chad makes $5 per hour, and he works 8 hours
5 x 8 = 40
30 + 40 = 70
Chad makes $70 in all
hope this helps
Cy + b ÷a
Hope this helps :)
The slope of any line perpendicular to the given line is 3