algebra 1

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Solve the following systems of linear equations using algebraic method.
1)3y=11-2x
3x=y-11

2)8x-6y=14
12x-9y=18

• algebra 1 -

1). 3y=11-2x
2). 3x=y-11

Using equation 1: y = (11-2x)/3
Substituting into equation 2

3x = (11-2x)/3 - 11
x = (11 -2x)/9 - 11/3
x + 2x/9 = 11/9 - 11/3
11x/9 = 11/9 - 11/3
solve for x

Then plug x into either equation 1 or 2, and solve for y

2) Use a similar procedure, as shown in problem 1

• algebra 1 -

X+12+x<44

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