(1) Solve the following simultaneous equations:3x-4y 10; 4x+3y 5

1.	(1) Solve the following simultaneous equations:3x-4y 10; 4x+3y 5
Answer» let, 3x-4y = 10 ----------> {1} 4x+3y = 5 ------------> {2} {1} × 3 = 9x - 12y = 30 {2} ×4 = 16x + 12y = 20===================== 25x = 50 x = 50/25 x = 2 therefore , x = 2 now place x in eq 1 (3×2) - 4y = 10 6 - 4y = 10 -4y = 4 y = (-1) so , x = 2y = (-1) Hit like if you find it useful! thank you for answer

Answer»

let,

3x-4y = 10 ----------> {1}

4x+3y = 5 ------------> {2}

{1} × 3 = 9x - 12y = 30

{2} ×4 = 16x + 12y = 20===================== 25x = 50

x = 50/25

x = 2

therefore , x = 2

now place x in eq 1

(3×2) - 4y = 10

6 - 4y = 10

-4y = 4

y = (-1)

so ,

x = 2y = (-1)

Hit like if you find it useful!

thank you for answer

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