Question

5x+2y=-3:x+5y=4 simultaneous equations​

Answer 1

Answer:

$5x + 2y = - 3 \\ x + 5y = 4 \times (5) \\ - \: \: \: - \: \: \: \: \: - \\ = = = = = = = = = \\ - 23y = - 23 \\ \\ y = 1 \\ \\ \\ x + 5y = 4 \\ x + 5 \times 1 = 4 \\ \\ = > x + 5 = 4 \\ \\ x = - 1$

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Answer 2

Answer:

solution =(x,y)=(-1,1)

Step-by-step explanation:

5x+2y=-3------(1)

x+5y=4-----(2)

multiplying equation (2) by 5

5x+25y=20--------(3)

substracting eq (1) from (3)

23y=23

y=1

put y=1 in eq (2)

x+5×1=4

x+5=4

x =4-5

x=-1

solution =(x,y)=(-1,1)