Answer:
x = -3
Step-by-step explanation:
2x + 9 = 3
2x = 3 - 9
2x = -6
x = -3
Find a common denominator. for example the third question is 2/3-2/5. the common denominator would be 15 because both are divisible by 15. since you multiply three, 5 times to get 15 you multiply 2 by 5 which is ten (new fraction is 10/15). then the other is 2/5 so same thing with the other one it takes three fives to get to 15 so its 2 times 3 which is six (new fraction is 6/15) you have to qual out each side. 10/15-6/15 is 4/15
9a8+24a4+16
Make sure that 8 and 4 are to the power
Answer:
40
Step-by-step explanation:
(1/8)b = 5
b = 5 : 1/8
b = 40
Answer:
542.5
Step-by-step explanation: tRUST ME ON THIS
