Question

Solve ax+by=2ab and bx-ay =b2-a2 by elimination method

Answer 1

Step-by-step explanation:

ax + by = 2ab---------------------(1 )

bx - ay. = b^2- a^2---------------( 2 )

multiply eq.1 by a/b and adding in eq. 2

a^2X/b + ay = 2a^2

bX. - ay. = b^2- a^2

---------------------------------

a^2X/b + bX = a^2+ b^2

X ( a^2 + b^2)/b. = (a^2 + b^2)

b ( a^2 + b^2)

X. =. –--------------------

( a^2 + b^2)

X. = b

substitute X= b in equation (1 )

aX + bY = 2ab

ab + by = 2ab

by = 2ab - ab

by = ab

Y= a

Answer 2

Answer:

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