Algebraic Expressions
Write the algebraic expression.
Four more than the price.
price is p
p+4
Solve for y.
y+ 0.4= 2
y=2.4
What is the variable in:
3m+5=8
m
Model 3x+3 with algebra tiles
3 blue x tiles and three yellow square integer tiles
4x+11= 19
x=2
Five less than three times the length
length is L
3L-5
12= solve for a
0.5a
a=24
What is the coefficient in
4x
4
Model -x -3
1 red x tile and 3 red integer tiles
solve for y
-3y+10= -14
y=8
one hundred minus five times the number of cars
number of cars is n
100-5n
solve for r
r/4 = 250
r= 1,000
What are the variables in
5x+3-2b
x and b
Model 4x -2 with algebra tiles
4 blue x tiles and two red integer tiles
solve for p
5-2p=11
p=-3
Write the algebraic expression.
Fifty less than two of m
2m-50
solve for z
15.5z= -77.5
-5
What is the a term without an equal sign called?
example: 3x+2
an expression
Model 2(2x +3) with algebra tiles
4 blue x tiles and 6 yellow integer tiles
solve for z
2/3z +1 =13
z=18
write the expression
5 increased by 2 times n
5+ 2n
4.5b=27
b=6
What is the property called when you multiple the outside number to everything in the parenthesis?
example 3(2x+2)
3 x 2x + 3 x 2
the distributive property
model -(x +2)
one red x tiles and two red integer tiles
solve for x
3x-7 =8
x=5