Question

2. If 5 (z – 3) - 4 (z - 2) = 0, then the value of z is :
(a) 7
(b) - 7
(c) 8​

Answer 1

$5(z - 3) - 4(z - 2) = 0 \\ \\ 5z - 15 - 4z + 8 = 0 \\ \\ 5z - 4z - 15 + 8 = 0\\ \\ z - 7 = 0 \\ \\ z = 7$

Hence, option a - 7 is the answer

Answer 2

$\huge\fcolorbox{red}{cyan}{Option \:A : 7}$

Step-by-step explanation:

$5(z-3)-4(z-2) = 0 \\ => 5z - 15 - 4z + 8 = 0 \\ => z - 7 = 0 \\ => \boxed{z = 7}$

Hope it helped