Prior knowledge
What is the variable in this expression?
4x+2
x
Solve this problem:
-20-4=?
-24
Determine the coefficients, variables, and the constants in the following:
3x+2+7y
Coefficients: 3 and 7
Variables: x and y
Constants: 2
Evaluate with x=4 and y=10
3x+y=?
3(4)+10
=22
Solve with x=8, y=2, and z=3
4(x+2y)+z
4(8+2(2))+3
=51