Expressions
7x · 3
21x
2w + 3 =7
w=2
3+x<7
4
v=4: 6v
24
What is x?
23+x=36
x=13
8 · 2x
16x
3y=9
y=3
x+4<6
2
j=7: j-6
1
What is x?
9x+2=110
x=12
6 · 5x
30x
3m+2=2m+4
m=2
x+3≥6
3
u=2: 5+4u
13
What is x?
12x+4=232
x=19
-5x · -9x
45x2
2(3n+2)=22
n=3
2x+3≥9
10
h=3: -27/h
-9
What is x?
100x+1=1
x=0
2xy · 2x
4x2y
2m+2(2)=5
m=1/2
9x+11>101
130
w=-1, x=9: -10wx
90
What is x?
120x+40=280
x=2