ALGEBRA 7

Find x if 8/(x+3) =10

Solution

8       =10

x+3

8 = 10(x+3)       after cross multiplication

8 = 10x + 30

8-30 =10x

-22 = 10x

-22 = 10x

10     10

-2.2 = x

x = -2.2

TRY THIS........

NECTA FORM II-2015 Qn.4

Find x if 6/(x+1) =12