As created (the concept) by Descartes, a variable is an alphabetic character used to represent unknown values. They are extremely useful when solving algebraic calculations allowing us to solve a range of calculations in simpler computations.
7+8=24+x (the first statement)
15=24+x
x=15-24
x=-9
Well, for starters it’s not 20 it’s 02 you must have made a mistake on your question then,
Answer:
y= .5
Step-by-step explanation: to seperate 14 times y, do 14 divided by 14 y and 7 divided by 14 to get y=.5
Multiply the area of all sides (10*5)*2+(10*4)*2+(4*5)*2 to get 220 in^2