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4x+15y=17,-x+5y=-13
Solve with substitution and please show steps.

Answer :

SYAHBANAZACKIGO

Step-by-step explanation:

4x + 15y = 17

15y = 17 - 4x

y = (17 - 4x)/15

-x + 5y = -13

-x + 5(17 - 4x)/15 = -13

-x + (17 - 4x)/3 = -13

-x - 4x/3 = -13 - 17/3

-7x/3 = -56/3

7x = 56

x = 56/7

x = 8

y = (17 - 4x)/15

y = (17 - 4.8)/15

y = (17 - 32)/15

y = -15/15

y = -1

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