Question

1. Solve the following equations and check your answers.
1. 5x - 2 = 18
1 1
2. Y+ = 5
2
3​

Answer 1

Answer:

1.5x-2=18

5x=18+2

5x=20

x=20/5

x=4

now checking it,

5(4)-2=18

20-2=18

18=18

hence it was correct

Answer 2

Answer:

Solution:

3x=2x+183x=2x+18

\Rightarrow3x-2x=18⇒3x−2x=18

\Rightarrow x=18⇒x=18

To check:

3x=2x+183x=2x+18

\Rightarrow3\times18=2\times18+18⇒3×18=2×18+18

\Rightarrow54=36+18⇒54=36+18

\Rightarrow54=54⇒54=54

L.H.S = R.H.S

Hence, it is correct

Step-by-step explanation: