V =Bh, solve for B
solve for m
ax +by =c for y
y=mx+B solve for M
y=mx+b solve for b
A=P(l+rt) solve for l
A=P(l+rt) solve for t
What is first step in solve for l in A=P(l+rt)
what is 2nd step insolving for r in A=P(l+rt)
what is a variable
A symbol
B usually a representing a number
C any letter can represent a variable
D a letter always respresent a variable