Question

Solve the following equation and verify the solutions :
5(x+3)=20
7x - (4x-3)=2x-5

Answer 1

Answer:

5(x+3)=20

15x+15=20

15x=20-15

15x=5

x=5/15

x=1/3

Answer 2

5(x+3)=20

(x+3) =20÷5=4

x = 4-3=1

that is, 5(1+3)=20=5×4=20

7x-(4x-3)=2x-5

(7×1)-4×1=5-(2×1)

= 7- 4 = 5-2 =3