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4 votes
Solve the equation. | x | -7 =6

asked
User Combine
by
8.1k points

2 Answers

5 votes
Hi.

Initial Equation:

| x | - 7 = 6

Add 7 to both the sides of the eqn.


\implies | x | - \cancel{7} + \cancel{7} = 6 + 7


\implies | x | = 13

Hence,

Solution to the equation are
\boxed{\sf x = 13} and
\boxed{\sf x = -13}

Thanks.
answered
User BGerrissen
by
7.4k points
1 vote
Hi there!

Let's solve this equation step by step!

|x| - 7 = 6

First add 7 to both sides.

|x| = 13



Next we need to take a look at the meaning of the stripes between our variable. Those stripes mean we are dealing with an absolute value function. The absolute value stripes make everything between the stripes positive; also when we plug in a number. In this particular question we can plug in both -13 and 13 at the position of n, because when -13 is made positive, it fulfils the equation.

Hence,

x= 13 or
x = - 13

~ Hope this helps you!
answered
User Jakeisonline
by
8.1k points

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