Question

Solve the following system of
Liner equation
x-2y=7,
3x +y = 35​

Answer 1

Step-by-step explanation:

Thus we get X=11 and y=2

Answer 2

Find the value:

Step-by-step explanation:

$\ Given \ value:\\\\ x-2y=7......(i)\\\\3x+ y =35.......(ii)\\\\\ Solution:\\\\\ In \ Equation (i) \ multiply \ by 3 \ then \ subtarct \ from \ Equation (ii)\\\\ x-2y=7 \times 3 \\\\3x-6y=21\\\\3x+y=35\\\\\ Subtract \\\\-5y= - 14\\\\y = \frac{14}{5} \\\\\ put \ the \ value \ of \ y \ in \ equation \ (i)\\\\3x+ y =35\\\\3x + \frac{14}{5}= 35\\\\\frac{15x+14}{5} = 35 \\\\ (15x+14) = 175\\\\15x=175-14\\\\15x=161\\\\x= \frac{161}{15}$

$x= \frac{161}{15} \ \ \ \ \ and \ \ \ \ y = \frac{14}{5}$

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