5x+10y=35 and 6x+12y=48 substitution method

i need to solve using the substitution method
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First eqn can be reduced to x+2y=7 by dividing through by 5. Second eqn can be similarly reduced by dividing through by 6: x+2y=8. But x+2y cannot be both 7 and 8 so the eqns are inconsistent and there can be no solution.

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