Q.2 Give first the step you will use to separate the variable and then solve the following equation:
(a) 3l = 42
(b) b/2= 6
(c) p/7=4
(d) 4x =25
(e) 8y=36
(f) z/3=5/4
(g) a/5=7/15
(h) 20t=-10


Answer :

(a) 3I =42
Or, I=42/3 = 14
(b) b/2 = 6
Or, b=6×2=12
(c) p/7 = 4
Or, p= 4×7 = 28
(d) 4x=25
Or, x=25/4
(e) 8y=36
Or, y= 36 /8 = 36 ÷4/8÷4 = 9/2
(f) z/3= 5/4
Or, z= (5/4) ×3 =15/4
(g) a/5=7/15
Or, a= (7/15)× 5 =7/3
(h) 20t = -10
Or, t = -10 /20 = -1/2

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