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{2x + 3y = 18
x + 7y = 31}
2x+ 3y = 18
x=31-7
2(31-7)+3y=18
y=4
x=31-7*4
x=3
(x,y) = (3,4)
Answer:
Solutions are (6,3) and (-2,3).
Step-by-step explanation:
From the first equation given we can write:
substituting for
in the second equation given we get


∴ y=3
Putting y=3 in the first equation we get

x-2 = ±4
Hence x=6 or x=-2.
Answer:
3,272
Step-by-step explanation:
8 x 400 = 3200
8 x 9= 72
3200 + 72 = 3,272
Answer:
8% is equivalent to the fraction 8/100
Step-by-step explanation: