Answer: 37/36
Step-by-step explanation: find the lowest common multiples of 4 and -9 and the answer is -36
21x -15 + 5 = 10x - 5
21x -5 = 10x
11x = 5
x = 5/11
Answer:
128
Step-by-step explanation:
86 plus 87 plus 91 =264
You have to get 98 times 4 which is 392
Then;
392-264, which is 128, which is the answer (the fourth number)
So;
86+87+91+128 = 392 divided by 4 (the number of numbers there is) which equals 98!
Hope it helped
Please mark me as Brainliest