Solve #1
2x-1=7
4
What holiday do we celebrate on October 31?
Halloween
6(x-5)=18
8
x+9=4x
What is the opposite of addition
Subtraction
-3(2x-4) =18
-1
(x-3)/7 = 2
(write on the board)
17
Addition
1/2(4x - 6) = 7
5
Solve for x.
ax+7=5
x=-2/a
What is the opposite of multiplication?
Division
2(x+13)+1 = -3(-3x+2) +1
4

From Line 1 to Line 2. They can't combine 4 and 6x because they aren't like terms!
Multiplication
4(x + 3x) = 16(10+x)
No Solution