Question

Write an equation for each problem then solve the equation and check your solution

Answer 1

6) twenty-one substracted from a number is -8

The equation for this statement is:

`x-21=-8`

we substracted 21 from a number x.

Solving the equation:

add 21 to both sides of the equation:

`\begin{gathered} x-21+21=-8+21 \\ x=13 \end{gathered}`

The number is 13

7) A number increased by 91 is 37.

The equation for this statement:

`x+91=37`

To solve this equation, we substract 91 from both sides of the equation:

`\begin{gathered} x+91-91=37-91 \\ x=-54 \end{gathered}`

The number is -54