Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
Answer:
x=-1 and x=1
Step-by-step explanation:
all you have to do is replace the letters with numbers and
B.yuri divided by n instead of n-1
Answer:
Step-by-step explanation:
5y + 3 + 2y - 7
=7y - 4