Question

Solve the simultaneous equation:
1. 9x + 4y = 5, 4x - 5y = 9
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Answer 1

HOPE THIS ATTACHMENT HELPS YOU........

Answer 2

your answer..= x=-1, y=1

a1=9 b1=4 c1=5

a2=4 b2=-5 c2=9

x=b1c2-b2c1/a1b2-a2b1

=4*9-(-5)*5/9*(-5)-4*4

=36+25/-45-16

x=61/-61

x=-1

y=c1a2-c2a1/a1b2-a2b1

=5*4-9*9/9*(-5)-4*4

=20-81/-45-16

=-61/-61

y=61/61

y=1