Question

plz send answer in step by step explanation also in unitary method only solve with the equation given.​

Answer 1

Step-by-step explanation:

x=2/3(90-x)

multiple 2

x=2×90-2× x /3

x=180-2x/3

x+2x =180/3

3x=60

x=60/3

x=20

I THINK IT IS USEFUL TO YOU ☺️