In the first one it would be (21-8)-6=7.
and in the second one it would be 21-(8-6)=19
Answer:
Step-by-step explanation
3x-15=2x-10+x
3x-15=3x-10
in this step, problem happens
becoz both side doesnt equal, no ans can be proven
Answer: 180 wpm
Step-by-step explanation: 30x6=180