Answer:
w=-3
Step-by-step explanation:
-3+w=-6 = original problem
w=-6+3 = u add 3 because u have it was negative so if u bring it to the other side u have to make it positive
w=-3 = answer
25n = t because its 25 beads per bag
Your sister should be 68 years old
when you was four she was half your age
so that mean that she was 2 years old
so now that you are 70
she is 68 years old