Question

Solve the equation a = m - n for the variable n.

Answer 1

n = m - a

Explanation:

a = m - n

add n to both sides of the equation

a + n = m - n + n

a + n = m

subtract a from both sides of the equation

a - a + n = m - a

n = m - a

Answer 2

n = a - m

Explanation:

a = m - n

a - m = n