Question

A=? if a+3:7+a and 4:5 are equal

Answer 1

No they are not equal;

a = -13

Explanation:

Here, we want to find the value of a

We are gong to use the ratio given

That will be;

a + 3/ 7 + a = 4/5

5(a + 3) = 4(7 + a)

15 + 3a = 28 + 4a

4a - 3a = 15-28

a = -13