Help with Transforming Formulas!!! ?

Question

Solve for the indicated variable.

y=mx+b, for x

y=mx+b, for m

a=1/2h(B+b) for h

k=1/2mv^2, for m

Answer 1

BUT WHAT DOES THE LETTERS NUMBERS LIKE X=WHAT

Answer 2

y = mx + b (subtract b from both sides)

y - b = mx (divide both sides by m)

(y - b)/m = x

x = (y - b)/m <===ANSWER

y = mx + b (subtract b from both sides)

y - b = mx (divide both sides by x)

(y - b)/x = m

m = (y - b)/x <===ANSWER

a = 1/2h(B + b) (multiply both sides by 2)

2a = h(B + b) (divide both sides by B + b)

2a/(B + b) = h

h = 2a/(B + b) <===ANSWER

k = 1/2mv^2 (multiply both sides by 2)

2k = mv^2 (divide both sides by v^2)

2k/v^2 = m

m = 2k/v^2 <===ANSWER