11. Solve the following equations for x. Verify that your solution is correct. a. -15 = 8x + 1
b. 7(2x + 5) = 4x –9-x

(PLEASE HELP)!!

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.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.