Question

Solve the following questions. check your result in each case. 3X+2(X+2)=20-(2x5)​

Answer 1

Answer:

3x+2(x+2)=20-(2x-5)

3x + 2(x) + 2(2) = 20 - 2x -(-5)

3x + 2x + 4 = 20 - 2x + 5

3x + 2x + 2x = 20 - 4 + 5

7x = 21

x = 21/7

x= 3..

Check:-

3x+2(x+2)=20-(2x-5)

substitute x = 3

3(3) + 2(3+2) = 20 - (2(3) - 5)

9 + 2(5) = 20 -(6-5)

9 + 10 = 20 -(1)

19 = 19..

So x = 3