Question

x + .2y = .6
3.4x - 0.2y = .01 cross multiplication method​

Answer 1

Answer:

===> x + 0.2 y = 0.6 ====> x+ (2/10)y = 6/10

cross multiply ==> 10 x + 2y =6 -----(i)

===> 3.4 x - 0.2 y = 0.01 ===>( 34/10) x - (2/10) y ==> 1/100

cross multiply===> 340 x - 20 y = 1 ----(ii)

now [ (i) × 10] + (ii) ===> 440 x ===> 61

x = 61/440 .

subsitute x in (i) ===> y = 203 / 2

Answer 2

Answer:

x = 61/440 and y= 203/2

Step-by-step explanation:

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