
Move variables to the left by adding their opposites to both sides. Eliminate the opposites.

Move constants to the right by adding their opposites to both sides. Eliminate the opposites.

Collect the like terms by subtracting their coefficients and numbers.

Calculate the sum or difference. Extract the negative sign from the expression. Add the numbers.

Divide both sides of the equation by 5 and calculate the quotient.
Answer:
A=SqRt(c^2-b^2)
Step-by-step explanation:
a^2 + b^2 = c^2
rearrange to solve for a^2
a^2= c^2-b^2
take the square root of each side
a= square root (c^2-b^2)
Answer:
Step-by-step explanation:
a). There are 8 points in the figure attached.
b). There are 9 lines in the given figure.
c). There are 5 planes in the figure attached.
d). Three collinear points are D,G and F.
e). Four co-planar points are G, F, H and C.
f). Intersection of planes ABC and ABE is the common line AB.
g). Intersection of planes BCH and DEF is the common line EF.
h). Intersection of AD and DF is a point D.
The prime factorization of 90 is 2*3^2*5