Question

$|x + 3| = 2(5 - x)$
​

Answer 1

Answer:

We know that if

|

a

|

=

b

,

a

=

±

b

.

First, remove the absolute value. Since we do not know if

2

x

−

3

is positive or negative, we will need a

±

on the

7

:

|

2

x

−

3

|

=

7

⇒

2

x

−

3

=

±

7

Then, add

3

to both sides, and finally divide by

2

:

2

x

=

3

±

7

x

=

3

2

±

7

2

So

x

is equal to either

10

2

=

5

or

−

4

2

=

−

2

Answer 2

Answer:

=>x+3=10−2x

=>x+2x=10−3

=>3x=7

=>x=

3

7

Hope it helps you