11-02-2017
Mathematics

Answered

The work of a student trying to solve the equation 4(2x − 1) = 11 + 3x + 5 is shown below: Step 1: 4(2x − 1) = 11 + 3x + 5 Step 2: 8x − 4 = 16 + 3x Step 3: 8x + 3x = 16 − 4 Step 4: 11x = 24 Step 5: x = 2.18 In which step did the student first make an error and what is the correct step?

AStep 2: 8x − 1 = 16 + 3x

b.Step 2: 8x − 8 = 6 + 3x

c.Step 3: 8x − 3x = 16 + 4

d.Step 3: 8x + 3x = 16 − 8

Verified Answer :

Prassha Prassha

11-07-2018

step c
8x -3x =16+4
5x =20
x= 4

Answer Link

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