f - g = 1/4b for b
Multiply each side of the equation by 4 to remove the 1/4 and isolate b:
4(f - g) = 4/4b
4/4 = 1, so we have:
b = 4(f - g)
the key to this problem was multiplying by the reciprocal of the constant
Multiply each side of the equation by 4 to remove the 1/4 and isolate b:
4(f - g) = 4/4b
4/4 = 1, so we have:
b = 4(f - g)
the key to this problem was multiplying by the reciprocal of the constant