Question

How to solve 7x-1/2(8x+4)=6 step by step

Answer 1

take the l.c.m. first and try to calculate it.

Answer 2

[7x*2(8x+4)-1]/2(8x+4)=6
14x(8x+4)-1=6*2(8x+4)
112x^2+56x-1=96x+48
112x^2+56x-96x-1-48=0

Answer 3

112x^2-40x-49=0

Answer 4

We don't use the distributive property?

Answer 5

step 1 i s wrong

Answer 6

I was thinking the same but because of the 4x but I wasn't sure

Answer 7

its 7x -8x-4=6
-x-4=6
-x=6+4
x=-10

Answer 8

from where di 4x come?its not given in the ques.have a look

Answer 9

oh the 1/2 didnt come out

Answer 10

An equation and the steps to solve it are shown below:
7x - 1/2 (8x + 4) = 6
Step 1: 7x - 4x - 2 = 6
Step 2: 3x - 2 = 6
Step 3: 3x - 2 + 2 = 6
Step 4: 3x = 6
Step 5: x = 2
Which step was the error made and why? (1 point)
Select one:
a. Step 1, because incorrect signs have been used
b. Step 2, because the terms have been added incorrectly
c. Step 3, because a number has been added only to one side of the equation
d. No error was made

Answer 11

I think your tight first step is wrong so the answer is A?

Answer 12

first step is wrong itself

Answer 13

Okay thank you :)

Answer 14

Equation stated in the question is
7x-1/2(8x+4)=6
How does this become
7x - (8x + 4) = 6 in the answer?
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Okay I see Rebella posted 2 answers and the equation is correct in the second one.
Rebella, could you delete that first posting?

Answer 15

Okay thank you I deleted the one with that doesn't have the 1/2

Answer 16

Thanks Rebella

Answer 17

Actually the mistake is in Step 3
Where does that +2 come from?
So your answer is:
c. Step 3, because a number has been added only to one side of the equation

Answer 18

see...according to the eqn....first step is itself wrong.if first will be wrong..rest of the steps automatically will be wrong

Answer 19

Okay, the question states
How to solve 7x-1/2(8x+4)=6 step by step

Then the first 2 lines of the answer are:
7x - 1/2 (8x + 4) = 6
Step 1: 7x - 4x - 2 = 6
Where is the mistake?

Answer 20

u try to solve this eqn first..can u show me first two steps?

Answer 21

The answer to the equation states
7x - 1/2 (8x + 4) = 6
Step 1: 7x - 4x - 2 = 6
Step 2: 3x - 2 = 6
Everything looks fine until Step 3

Answer 22

is (8x+4) in the denominator or numerator

Answer 23

it is written in a way as its in denominator.

Answer 24

The equation would be a LOT easier to solve if it were written like this: