find three solutions of equation 3x-y=12
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Answer:
(0,-12); (4,0); (1,-9)
Step-by-step explanation:
As this is linear equation in two variable, the three solution of this equation are as:
put x= 0, solve the equation for y;
3×0 - y = 12
or
0-y=12
or y = -12
so (0,-12) is first solution.
now put y=0, and solve the equation for x,
3×x - y = 12
or 3x - 0 = 12
or 3x = 12
or x = 12/3
or x = 4
so (4,0) is the second solution
now put x=1 and solve the equation for y,
3(1)-y = 12
or 3-y = 12
or -y = 12-3
or -y = 9
or y = -9.
so (1,-9) is the third solution.
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