3x+3y=10 -9x-9y=-30

1 answer:

4 0

There is no solution for this answer

solve problems by elimination
eqn1) 3x+3y=10
eqn2) -9x-9y=-30

1st multiply eqn 1 by 3
= 9x+9y=30

now add the 2 equations
eqn1) 9x+9y=30
eqn2) -9x-9y=-30

x term: eqn1+eqn2 = (9x-9x) =0x

y term: eqn1+eqn2 = (9y-9y) =0y

coefficient term: 30-30=0

new eqn = 0x +0y = 0

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