Question

SOLVE: 152x-378y=-74;-378x+152y=604

Answer 1

Answer:

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Step-by-step explanation:

== 152x-378y = -74 ....1

378x+152y = 604 ....2

Firstly for solving it lets make it easy by adding equation 1 and 2 and also subtracting 1 and 2

adding 1 and 2

152x-378y = -74

378x-152y = 604

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530x-530y = 530

dividing whole equation by 530

x-y = 1 ......3

then subtracting 1 and 2

152x-378y = -74

378x-152y = 604

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-226x - 226y = -678

dividing whole equation by 226

-x-y = -3 .......4

then let's solve 3 and 4th equation by elimination method

x-y = 1

-x-y= -3

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0 -2y = -2

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-y = -2/2

-y = -1

y=1

now putting y=1 in 3rd equation

x-y=1

x-1 =1

x = 1+1

x = 2

The values of x = 2 and y = 1

I hope my efforts will make you study better.

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