Question

the pair of linear equations -3x+4y=7 and 9/2x-6y+21/2=0 has.​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

(i) 3x + 4y =7 ….(1)  Step 1: Isolate above equation in y.  Subtract 3x from both the sides,  3x + 4y – 3x = 7 – 3x  4y = 7 – 3x  Divide each side by 4  y = 1/4 x (7 – 3x) ….(2)  Step 2: Find Solutions  Substituting x = 1 in (2)  y = 1/4 x (7 – 3) = 1/4 x 4 = 1  Thus x = 1 and y = 1 is the solution of 3x + 4y = 7  Again, Substituting x = 2 in (2)  y = 1/4 x (7 – 3 x 2) = 1/4 x 1 = 1/4  Thus x = 2 and y = 1/4 is the solution of 3x + 4y = 7  Therefore, (1, 1) and (2, 1/4) are two solution of 3x + 4y = 7wo-solutions-for-each-of-the-following-equations-i-3x-4y-7-ii-x-6y-iii-x-y-4-iv-2-3x-y-4