Question

2 to the power 3x-1+10?21=18 find the value of x

Answer 1

i think u have written the wrong question. but lets try!
3x-1+10+21 = 18
=3x-1=18-10-21
=3x-1= -13
=3x= -13+1
=3x= -12
=x= -12/3= -4