Question

what is the folmula thats sum is greater than x3 + y2

Answer 1

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Class 12

>>Applied Mathematics

>>Linear Equations

>>Solving a Pair of Linear Equations - Elimination Method

>>Solve the following systems equations by

Question

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Solve the following systems equations by eliminations method;

x+y=5

2x−3y=4

Medium

Solution

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Given pair of linear equations is

x+y=5...(i)

And 2x=3y=4....(ii)

On multiplying eq. (i) by 2 to make the coefficients of x equal, we get the equations as

2x+2y=10....(iii)

On subtracting Eq.(ii) from Eq.(iii) we get

2x+2y−2x+3y=10−4

⇒5y=6

⇒y=

5

6

On putting y=

5

6

in Eq. (i) we get

x+y=5

⇒x+

5

6

=5

⇒x=

5

25−6

⇒x=

5

19

Hence x=

5

19

and

5

6

which is the required solutions