Topic 3-1
2x-3=-5
x=-1
-4x-10=-34
x=6
-2.4x + 3.8x - x
0.4x
8x -7=4x +21
x=7
(2+19)6x10=?
1,260
m/2 + 6=10
m=8
x/7+19=4
x=105
4x-2x-20x+x
-17x
4x+6= 2 1/2x +12
x=4
(4x1)18
72
-24= x/-5 -9
x=6
1/3t +2=4
t=6x3 (x=37)
0.8n + 0.6n=42
=42
-11x +9=-2x +45
-4=x
7 to the 2nd power
49
18=-5b-17
b=-7
-5c+9=-16
c=1.4
-9.76d - (-12.81d)=8.54
d=2.8
3x +15= 4x +12
x=3
13 + 2(x-6)=4x-7
4=x
8=-12+5y
4=y
x/8 - 1/2=-7/2
=-24
y=9
550-25x = 10+15+20x
9=x
(4 x 10)+(5 x 100)
540