Solve 75 – 9t = 5 (- 4 + 2t).
a) –5
b) –4
c) 4
d) 5
Solution:75 – 9t = 5 (- 4 + 2t)
75- 9t = -20 + 10t 75+20=
10t+9t
19t = 95 t = 95/19 t = 5
Solution of 3 (9 + 2x) = 5x
is………...
a) 27
b) – 27
c) 19
d) 16
Solution:3 (9 + 2x) = 5x
27
+ 6x = 5x 27 = 5x – 6x
–x
= 27 x
= – 27
Which of these is not a linear equation?
a) 8x – 5 = 60
b) 3x +5y3 =12
c) ¾ + x =0
d) 3/2x – 1/x =3/5
