astultz309459 astultz309459

20-11-2018
Mathematics

contestada

What is the x and y for
6x+7y=59
4x+5y=41

Respuesta :

20-11-2018

6x+7y =59…(1)
4x+5y =41…(2)

(1)x4 : 24x + 28y = 236 …(3)
(2)x6: 24x +30y =246 …(4)

(4) - (3) :
(24x + 30y) - (24x+28y) = 246 - 236
2y= 10
y=5

subs y=5 into (1)
6x + 7(5) =59
6x+35=59
6x=24
x= 4

So x=4 y=5

Hope i can help u

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