Answer:
A=50
Step-by-step explanation:
assuming you mean 100-A+20-70=0
you need to solve for A, which means add all your numbers together and isolate A.
-A+50=0
A=50
Answer:
x= 73
Step-by-step explanation:
you need to left the x alone
Answer: 120 beats per 45 seconds
Step-by-step explanation:
8x16=? 6x12=? Then add both answers ?+?=?
Answer:
x < -10/7
Step-by-step explanation:
Divide both sides by -7. Because this divisor is negative, we must reverse the direction of the inequality sign, obtaining:
-7x < 10
----- < -----
-7 -7
Then x < -10/7
