Question

Write a two column proof for the following statement.

“Given that 2( -x + 4) = 3 , prove that x = 5/2.

Answer 1

See explanations below

Explanation:

Given the equation 2( -x + 4) = 3, we are to find x;

2( -x + 4) = 3

Open the bracket;

-2x + 8 = 3

-2x = 3-8

-2x = -5

Multiply through ny -1

2x = 5

Divide through by 2

2x/2 = 5/2

x = 5/2 (Proved)