Question

Solve for the value of x for the following equations. Verify your answer. 18. x + 3 = 19 + 3x 19. 3x + 9 = 9x + 3 20. 4x + 19 = 7x - 45 patulong po​

Answer 1

Step-by-step explanation:

18) x+3 =19 +3x

x-3x =19 - 3

- 2x =16

x =-8

verifying : - 8+3=19 +(3*-8)

- 5 = 19 - 24

- 5 = - 5 (LHS = RHS)

19) 3x +9 =9x +3

3x - 9x =3-9

- 6x =-6

x = 1

20) 4x + 19 =7x - 45

4x - 7x = - 45-19

- 3x =-64

x = 21.3