Question

If m =3x‐4/5 and n=x‐7/3 and 3(m+n) = 13 then the value
of x is:​

Answer 1

Step-by-step explanation:

m = 3x - 4/5

n = X - 7/3

3(m + n ) = 13

=} 3(3x - 4/5 + x - 7/3) = 13

=} 3(4x -12-7/15) = 13

=} 3(4x -47/15) = 13

=} 12x - 47/5 = 13

=} 12x = 13 + 47/5

=} 12x = 65 + 47

~~~~~~~

5

=} x =112/5 × 1/12

=} x = 28/5 × 1/3

=} x = 28/15