Question

an equation is a condition on a variable it is expressed by saying that an expression with the variable is equal to a fixed number example x minus 3 is equal to 10 ​

Answer 1

Answer:

13

Step-by-step explanation:

Let x be the variable.

In this case, the equation will be made as follows:

x - 3= 10

x = 10 + 3 (as the signs change after transfer)

x = 13

Check:

x - 3= 10

now we substitute x with it's newly found value,

13 - 3 = 10

As this is a valid answer, the value of x is also correct.