You need to use a common denominator. The least common denominator of 11 and 22 is 22.
3/22 + -1/11 = 3/22 + -2/22 = 3/22 - 2/22 = 1/22
(6,2)
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Hope this helps you
Answer:
She subtracted the coefficients instead of dividing them
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
3x+3=15
3x=15-3
3x=12
x=4