Just add them
QM+MR=QR
16+x+2(x+2)=QR
16+x+2x+4=QR
20+3x=QR
Answer:
times
Step-by-step explanation:

Divide both sides by 5

Hope this helps
Answer:
386
Step-by-step explanation:
4+4+5x2x5+(3+3+3)x6x6+2+2
=4+4+5x2x5+9x6x6+2+2
=4+4+50+324+2+2
=386
Answer:
3^-5
Step-by-step explanation:
x^-3=1/x^3
this rule applies to all negative exponents lol