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umka2103 [35]
3 years ago
15

For questions 5 and 6, solve the system using the Elimination method.

Mathematics
1 answer:
beks73 [17]3 years ago
3 0

Answer:

\boxed{x = 7~~and~~y = -3}

.

Step-by-step explanation:

5x + 3y = 26 (times 6) 30x + 18y = 156

6x + 7y = 21 (times 5) 30x + 35y = 105

.

30x + 18y = 156

<u>30x + 35y = 105 </u>  <u>  </u>

-17y = 51

y = \frac{51}{-17}

y = -3

.

Substitute the value of y to one of equations

6x + 7y = 21

6x + 7(-3) = 21

6x - 21 = 21

6x = 21 + 21

6x = 42

x = \frac{42}{6}

x = 7

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