Question

use systematic method to determine the solution of the following equations:
a) 2z+4= 6z + 5z -2 b) 4k - (7k – 3) = 5k - 6
c) 2x + 4 = -2x-1+7​

Answer 1

Answer:

Hope my answer will help u in understanding this Question.

Step-by-step explanation:

(a) 2z + 4 = 6z + 5z - 2.

= 2z + 4 = 11z - 2

= 4 + 2 = 11z -2z

= 6 = 9z

= z = 6/9 = 2/3

(b) 4k - (7k -3) = 5k - 3

= 4k - 7k + 3 = 5k - 6

= -3k + 3 = 5k - 6

= -3k - 5k = -6 -3

= -8k = -9

= k = 9/8

(c) 2x + 4 = -2x -1 +7

= 2x + 2x = 6 - 4

= 4x = 2

= x = 2/4 = 1/2