PLEASE ANSWER ASAPPP How Many Solutions Do These 3 Expressions Have?

3(x - 4) = x + 7 + 2x

2(2x + 4) = 3(x + 3)

2(x + 5) = 10 + 2x

Answers
No Solution - Infinite Solutions - x = 1

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.