How should this sentence be expressed in numbers?

“A number three times as great as the number a equals four less than A.”

3a = a - 4

3a = 4 - a

a + 3 = a - 4

one third a = a - 4

Question

How should this sentence be expressed in numbers?

“A number three times as great as the number a equals four less than A.” 

3a = a - 4

3a = 4 - a

a + 3 = a - 4

one third a = a - 4

anonymous · Answer

first

zepp · Answer

Number equals 4 less than A: a - 4
A number 3 times: 3a
3a = a-4, so first.

anonymous · Answer

Number is 3 times as great as a , that is 3a
and it equals 4 less than a , that is a-4
Hence,
3a=a-4