Question

find the value of x in 3 X + 5 + 2 X + 6 + x is equal to 4 x + 21​

Answer 1

Answer:

$= > 3x + 5 + 2x + 6 + x = 4x + 21 \\ = > 6x + 11 = 4x + 21 \\ = > 6x - 4x = 21 - 11 \\ = > 2x = 10 \\ = > x = 5$