Find the X-value
Find X:
-2y + 15x= -24
2y + 9x= -24
What is -2
Find Y:
-7y -4x= 1
7y -2x= 53
What is -5
A set of two or more equations
What is system of equations?
What is the 1st step in solving a system of equations using elimination?
Cross multiply the coefficients of x (the numbers in front of x)
Find X:
-7y -4x= 1
7y + 9x= -24
What is -9
Find Y:
-2y + 15x= -24
2y + 9x= -24
What is -3
A symbol you use if you want to shade above a dashed line
> "Greater than"
What is the 2nd step in solving a system of equations using elimination?
Subtract each equation from each other
Find X:
-9y + 4x= 6
9y + 5x= -33
What is -2
Find Y:
-6y + 11x= -36
-4y + 7x= -12
What is -60
A symbol you use to indicate shading below a solid line
< "Less than or equal to"
What is the 3rd step in solving a system of equations using elimination?
Solve for the y value
DAILY DOUBLE!!
Find X:
-4x + 4y =8
9x - 8y= -13
What is 3
Find Y:
-6x -2y= -4
-12x -5y= -1
What is 5
A symbol or number that we do not know yet.
What is a Variable
What is the 4th step in solving a system of equations using elimination?
Substitute the y value into either one of the equations
Find X:
7x + y= 13
20x + 4y= 36
What is 2
Find Y:
-6x + 8y= 2
6x -5y= -8
What is -2
What is a linear equation?
A linear equation is an algebraic equation that has a constant rate of change or slope (y=mx+b)
OR
A graphed straight line
What is the 5th and 6th step in solving a system of equations using elimination?
Solve for the value of x and write as coordinate points