Math, asked by sandeepumale, 1 year ago

please solve these its urgent
x + 7y = 10 ; 3x - 2y = 7
by simultaneous method

Answers

Answered by 8334812253shinam

x+7y=10....×3

3x+2y=7.....×1

3x+21y=30..(.i)

3x+2y=7....(ii)

+ - -

we have 19y=23

y=23/19=1.21

putting the value of y in eqn 1 we have

x+7×23/19=10

x=1.53

sandeepumale: it is a wrong answer

8334812253shinam: but i checked 7×1.21+1.53=10

sandeepumale: i want a answer x=3 and y=1

mayank8379: this is a answer..

sandeepumale: thanxx

mayank8379: welcome

Answered by mayank8379

x+7y=10

3x-2y=7

then

x=3

y=1

Attachments:

sandeepumale: is this simultaneous equation

8334812253shinam: yes

Previous Question

Next Question