If I solve an equations and get this
3=3
What kind of solution is this?
Infinitely Many solutions
because 3 will always equal 3
3x+1=2x+2
Solve
x=1
one solution
Create two equations that when solved have infinitely many solutions.
Example: 3x+6=3x+6
Example: 2(x+4)=2x+8
If I solve an equations and get this
3=9
What kind of solution is this?
No solution
because 3 will never equal 9
5x+2x+3=7x+3
Solve
7x+3=7x+3
3=3
Infinitely many solutions
Write an equation that will have one solution
Example: 5x+3=2x+1
If I solve an equations and get this
x=3
What kind of solution is this?
One solution
x=3 is the only solution to balance the equation
5x+2x+3=7x+5
Solve
7x+3=7x+5
3=5 false
No solution
3x+7= 3(x-2)
Solve
3x+7=3x-6
7=-6 false
No solution
3x+4=3x+4
Solve
4=4 true statement
Infinitely many solution
5x+3=7x-9
Solve
3=2x-9
12=2x
6=x
Carlo and Helen spend the same amount of money on art supplies. Carlo buys 4 glue sticks and spends $3 on glitter. Helen buys 2 glue sticks and spends $3.75 on tape and $2.75 on paint. What is the cost, x, of each glue stick?
Carlo: 4x+3 equals Helen: 2x+3.75+2.75
4x+3=2x+3.75+2.75
4x+3=2x+6.5
2x=3.5
x=1.75 is the cost of the glue stick
3x+5=3x+8
Solve
5=8
No solution
Create 2 equations that when solved will have no solution.
example: 5x+4=5x-6
4=-6 false
No solution
Solve
6x+26x-10=8(4x+10)
32x-10=32x+80
-10=80 false no solution