Solve linear equation
-4 = x + 5

-9

Step-by-step explanation:

-4 = x+ 5

subtract 5 on each side to isolate x

-4-5=x+5-5

-9=x

the square root of what number? if you add that, then someone will probably answer the question.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.