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From Karnataka Open Educational Resources
Line 138: Line 138:  
10b = 2 ( 3b + 2 )<br>
 
10b = 2 ( 3b + 2 )<br>
 
10b = 6b + 4<br>
 
10b = 6b + 4<br>
 +
10b – 6b = 4<br>
 +
4b = 4<br>
 +
b = 1<br>
 +
Consider equation 2,
 +
 +
a + b = 10b
 +
Put b = 1
 +
a + (1) = 10 (1)
 +
a + 1 = 10
 +
a = 10-1
 +
a = 9
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