You probably just need to simplify the expression. To do this you just combine like terms. So you would subtract 38 from the 10 to get -28x and then subtract 47 from 36 which gives you -11. Your expression should be -28x-11.<span />
Well you see it’s any other letter that’s not In the alphabet
1.3x10^-2 = .013
.013 x .05 = .00065
.00065 = 6.5x10^-4
45 + 4 makes 49 if that counts
