Question

solve the given equations using any of the algebraic methods:
152x-378y=-74
-378x+152y=-604​

Answer 1

Answer:

Step-by-step explanation:

152x-378y=-74

-378x+152y=-604

By the method of adding and substracting

Adding

152x-378y=-74

-378x+152y=-604

-226x-226y=-678

-226(x+y=3)

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

Substracting

-152x+378y=74

378x-152y=604

-226x+226y=678

-226(x-y=3)

x-y=3 ----------------(2)

Therefore x=3

y=0