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zaharov [31]
3 years ago
5

Solve the following systems using substitution. X - 9y = 25 6x - 5y = 3

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

x = -2, y = -3

Step-by-step explanation:

Multiply eqn1 by the LCM of 1 and 6 i.e coefficients of x

We get:

<u> </u><u> </u> 6x - 54y = 150 (eqn1)

<u>6x - 5y = 3</u> (eqn2)

<u> - 49y = 147</u>

y = <u>147</u>

-49

y = -3

Substitute y in eqn2

6x - 5(-3) = 3

6x + 15 = 3

6x = -12

x = -2

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