Question

URGENT ! HELP ! Question is in photo below.

Answer 1

`(3(x+5))/(2) \cdot 2=21\cdot 2`

Above step we use "Multiplication property of equality"

`3(x+5)=42`

In the above step we "Simplify on both sides of equation"

`3x+15 = 42`

In the above step we use "Distribution property"

`3x+15-15=42-15`

The above step is the result of using "Subtraction property of equality"

`3x=27`

Above step is result of "Combining the like terms"

`(3x)/(3) =(27)/(3)`

Above step is the result of using "Division property of equality"

`x=9`

Above step is result of "Simplifying fractions on either side of equation"