emily170 emily170

15-04-2017
Mathematics

contestada

Solve the following systems by the addition method

4x - y =3
2x+3y = 18

Respuesta :

ghanami ghanami

15-04-2017

hello :
4x - y =3........ ×3
2x+3y = 18
I'have : 12x-3y = 9
2x +3y = 18
by the addition method : 14 x =27
x = 27/14
4(27/14)-y = 3
y = 33/7

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