Bell Ringer
2x – 3y = 4
5x + 3y = 10
HW Check
• Check elimination part 1 practice
Solving Systems of Equations
by Elimination – Part 2
Multiply one or both equations by a
1.) _____________
constant that will create ___________________
opposite
coefficients for either x or y, if needed.
Add
2.) _____________ the two equations,
eliminating
______________________
one variable.
Solve for the remaining variable.
3.) _____________
Substitute your value into one of the
4.) _________________
remaining
original equations to find the ________________
value of x or y.
Example
x + 2y = 4
3x + 4y = 4
Elimination
Practice Part 2
Socrative Summary #1
-4x – 15y = -17
-x + 5y = -13
Socrative Summary #2
5x + 2y = 20
10x + 4y = 60
Solving Systems of Equations
by Elimination – Part 3
Multiply one or both equations by a
1.) _____________
constant that will create ___________________
opposite
coefficients for either x or y, if needed.
Add
2.) _____________ the two equations,
eliminating
______________________
one variable.
Solve for the remaining variable.
3.) _____________
Substitute your value into one of the
4.) _________________
remaining
original equations to find the ________________
value of x or y.
Example
2x + 3y = 10
3x + 4y = 18
Elimination
Notes Part 3
Socrative Summary #1
-4x – 2y = 14
-10x + 7y = -25
Socrative Summary #2
4x + 2y = -20
12x + 6y = -60
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