1+[2x-3(1.8/0.2)] how to simplify
1 + [2x - 3(1.8 / 0.2 ) ]= 1 + [ 2x - 3 * 9]=1 + [2x - 27] = 1 + 2x - 27 associate property of addition = 1 - 27 + 2x commutative property of addition = -26 + 2x = 2x - 26
1.8=5/5+4/5=9/5--------------0.2=1/5-------------------1.8/0.2=(9/5)/(1/5)=(9/5)*(5/1)=9-------------------Therefore:1+[2x-3(1.8/0.2)]=1+[2x-3(9)]=1+[2x-27]=1+2x-27=2x-26=2(x-13)
