a + b = 30
(a + 2)(b - 3)=210
find the value of a and b
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a+b=30 --- (i)
(a+2)(b-3)= 210
ab-3a+2b-6 =210
ab-3a + 2b = 216-----(ii)
multiply (i) by 3
i.e. 3a + 3b =90---(iii)
add (ii) &(iii)
3a+3b= 90
ab-3a+2b=216
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ab+0+5b=306
ab+5b=306
ab+b=306/5
ab+b=61.2
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