Answer:
a = 5M(B- d)
Step-by-step explanation:
Given
[tex]\frac{a}{5M}[/tex] + d = B
Multiply through by 5M to clear the fraction
a + 5Md = 5MB ( subtract 5Md from both sides )
a = 5MB - 5Md ← factor out 5M from both terms
a = 5M(B - d)
