Question

Malik’s solution to the equation , when , is shown below.

What error did Malik make first when solving the equation ?

Malik did not multiply correctly.
Malik added 240 to each side of the equation.
Malik did not multiply correctly.
Malik substituted 60 for y instead of x.
Mark this and return

Answer 1

d

Step-by-step explanation:

Answer 2

Malik substituted 60 for y instead of x.

Step-by-step explanation:

According to Malik’s solution.:

2/5x - 4y = 10

2/5x - 4(60) = 10

2/5x - 240 = 10

Find Malik’s complete solution in the picture below :

From the question, x is given as 60 and not y ;

In the solution provided by Malik, he substituted 60 for y ; and that is where the mistake lies, he should have substituted 60 for x and not y