What are the different ways of solving systems of linear equations?

1) Graphing- If you graph the numbers you will easily be able to identify the answer.

2) Substitute- Substitute numbers in for x or y until they're equal on both sides.

EX: 2x+2=10

Substitute numbers in until you get a number that makes it equal on both sides

x= 4

3) Elimination- Eliminate numbers from both sides until they're equal.

Hope this helped! :)

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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the answer is simply just 6n add the two together as they have an n