Short Answer TypeFor what values of a and b does the following pair of linear equations have an enfinitc no. of solution :
2x + 3y = 7
a (x + y) -b (x - y) = 3a + b - 2
Solve the following pair of linear equations by the elimination method and the substitution method
x + y = 5 and 2x – 3y = 4
Solve the following pair of linear equations by the elimination method and the substitution method
3x + 4y = 10 and 2x – 2y = 2
3x + 4y = 10 ...(i)
2x - 2y = 2 ...(ii)
For making the coefficient of y in (i) and (ii) equal, we multiply (ii) by 2 and adding we get.
Now, putting the value ofx in (i), we get
3x + 4y = 10
⇒ 3(2) + 4y = 10
⇒ 6 + 4y = 10
⇒ 4y = 4
⇒ y = 1
Hence, x = 2, y = 1
Substitution method :
We have,
3x + 4y = 10 ...(i)
2x - 2y = 2 ...(ii)
From (i), we have
3x + 3y = 10![<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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Substituting the value of (iii) in (ii), we get
2x - 2y = 2
Now, substituting the value ofy in (iii), we get
Hence, x=2, y=1
Solve the following pair of linear equations by the elimination method and the substitution method
3x – 5y – 4 = 0 and 9x = 2y + 7
Solve the following pair of linear equations by the elimination method and the substitution method![<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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