Solve by the linear combination method.

6x – 2y = 2
–3x + 4y = 5

(1, 2)

(1, 3)

(2, 3)

(1, –2)
1 points
Question 2
Solve by the linear combination method.

2x + 8y = –2
5x + 6y = 9

(3, –1)

(–2, 2)

(–2, 7)

(–1, 3)

X=5/9

Y=0.65

See below the following picture for the solution

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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