Question

The teacher asked Mohit to solve the problem 2x + 7 = 3.
He solved the problem but his answer was wrong. Identify
the step in which he committed the mistake.
Step-1:2x + 7 = 3
Step-2:2x = 3-7
Step-3:2x = - 4
Step-4: X = - 4x2
Step-5: X= - 8
(a) Step-2
(b) Step-4
(c) Step-3
(d) Step-5​

Answer 1

Step-by-step explanation:

b)- Step 4

because 2x = -4

then, x= -4/2 (and not -4*2)

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Answer 2

Answer:

b)Step-4

Step-by-step explanation:

he should divide 2 with -4 but he multiplied it he should do this sum like this

2x=-4

x=-4/2

x=-2