Step-by-step explanation:
20a + 158+6c=you will expand the brackets
= so it is 120+60+48
20a+158+6c=120+60+48
20a+ 6c=120+60+48-158
20a+6c=70
20a divide by 20+6c divide by 6 on both side
a + c = 0.58
Answer:
2x + 1=13
Step-by-step explanation:
the product of a number and 2 (2x)
sum of 1 (+1)
is 13 (=13)
Answer:
C=10pi
Step-by-step explanation: