Question

Solve x if (i)21-3(x-7) and ii)4x-9=2x+7​

Answer 1

Answer:

(i)x=14 ii)x=8

Step-by-step explanation:

On simplification

See the pic

Answer 2

1. 21 - 3(x-7)

= 21 - 3x - 21

or, - 3x = 0

or, x = 3

2. 4x - 9 = 2x + 7

or, 4x - 2x = 9 + 7

or, 2x = 16

or, x = 8