a)2x=3/4
so two things you can do
i. 4(2x)=3
8x=3
x=3/8
PS: this is easier
ii. x=(3/4)/2
x=3/4/2/1
x=3/8
b) m/3=-2/5
again two ways
i. 5(m/3)=-2
5m/3=-2
5m=-2×3
5m=-6
m=-6/5
ii. m=3(-2/5) remember multiply the number to only the numerator
m=-6/5
c) -2 1/2x=-3 1/2
make it easier, make it into fractions
-2 1/2= -2×2+1= -5/2
-3 1/2= -3×2+1= -7/2
-5/2x=-7/2
-5x/2=-7/2
-5x=2(-7/2)
-5x=-14/2
-5x=-7
x=-7/-5
x=7/5
