Lodi solved the equation 3 + (x)/(2) = 10 And justified each step as shown. Identify lodi's error and fix his mistake.

Question

Lodi solved the equation


`3 + (x)/(2) = 10`
And justified each step as shown.
Identify lodi's error and fix his mistake.

Answer 1

Explanation:

lodi's steps are fine but he mixed up the justifications for his steps:

the 2nd step's justification should be Subtraction Property of Equity; and

the 3rd steps's justification should be Multiplication Property of Equity.

Answer 2

3+ x/2 = 10 .......> Given

x/2 = 7 ...............>Subtraction property of equality

x = 14 ..........> Multiplication property of equality