Solve
Solve: x + 21 = 43
x = 22
simplify the following
2x + 5x
7x
substitute x = 3 to simplify: 4x +2
Algebra: 14
2x * 3x
6x2
simplify:
30 - 3 * 7
9
Solve: 3x + 4 = 7
x = 1
simplify: 2x + 6x + 3y + 7y =
Algebra: 8x +10y
substitute x = 2 to simplify: 7(x + 6)
56
5 * 3y
15y
write an expression for the following:
a number multiplied by 4 then subtracted FROM 20
20 - 4x
Solve: (x + 3)/4 = 6
x = 21
simplify 5x + 4y -3x -2y =
Algebra: 2x +2y
substitute x = -2 to simplify: 3x + 2
-4
2*7x + 4*3y
14x + 12y
Substitute a=2 and simplify
a2 + 3a
22 + 3*2
4 + 6
10
Solve: 4x - 3x + 2x = 9
x = 3
Simplify: 6a(b + c) - 2a(b + c)
4ab +4ac
substitute x = 2 to simplify: 2(4x + 5) + 4
30
7x * 3x - 2x * 2x
17x2
What is the word we use for the multiplier of our variable.
ie the 2 in 2x
Coefficient
Solve: 21 = 11x - 12
x = 3
simplify: 3x + 6x2 + 4(2x2)
Algebra: 3x + 14x2
substitute x = 10 to simplify: (5x)/2 + 3
28
3x*(2x +4)
6x2 + 12x
The short side of a rectangle is x, the long side is x+3.
If the perimeter is 22 what are the lengths of each side?
x + x+3 + x + x+3 = 22
4x + 6 = 22
4x = 16
x=4
Short side is 4 and the long side is 7