Question

How to check by substituting if q=5, is the solution of the equation or not. 2(q-1)=12

Answer 1

q=5. LHS=2(q-1). RHS=12

2(q-1)=12

2(5-1)=12

2(4)=12

8=12
• As LHS is not equal to RHS,q=5 is not a solution of the equation.