Step-by-step explanation:
change graphic into alohabet so it is easier to see
solve easy equation with only a type of unknown first..
once you found the value of the unknownm , substitute it in any equation so you can find the value of other unknown.
The first one is a reflection over the x-axis :)
The middle one is proportional
Answer:
Letters in math are called varables. They are used as symbols that are applied to an unkown nummber.
Step-by-step explanation: