Perimeter is the addition of all the sides
x-2+x+3x+1=2x-5+x+4+6x-7; since their perimeters are equal
5x-1=9x-8
collect the like terms
-1+8=9x-5x
7=4x
x=7/4
x=1.75
If the expression is 2*x*3, x must be 1/3 in order to cancel out the 3 which would leave the 2.
-27. Divide 2 by 3, then -18 by that number to get -27.
