Solve for x and y: 3
− = 27 ; 3
+ = 243
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aradhya53128:
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Answer:
Step-by-step explanation:3x - y = 27 = 33 ⇔ x - y = 3 ....(i)
3x + y = 243 = 35 ⇔ x + y = 5 ....(ii)
On solving (i) and (ii), we get x = 4
i think is the right answer for this question-3(x-y)=27 and3(x+y)=243
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