Solve for c.
a(c + b)=d
a. c = d + ab / a
b. c = d − ab/b
c. c = d − ab/a
d. c = ab − d/a
solve for b.
d = 3a + 3b
a. b = 3a−d/3
b. b = d−3a/3
c. b = d − 3a
d. b = d − 3a/ a
the formula for a trapezoid relates the area a, the two bases, a and b, and the height, h.
a = h(a+b)/2
solve for b.
b=2a−a/h
b=ah/2 − a
b=2a/h − a
b=2a/h + a
the formula for the perimeter of a rectangle is p = 2(l+w).
solve for l.
l = 2p − w
l = p−w/2
l = p/2 + w
l = p/2 − w