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Aarav Pacheco
Mathematics
25 July, 17:01
3x+3y=10 - 9x-9y=-30
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Kelvin Newton
25 July, 17:21
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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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