9x-6y-(12*2y)=0 9x-6y-24y=0 9x-30y=o 9x=30y 3x=10y y=0.3x x=10/3y
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You can solve lineaar quadratic systems by either the elimination or the substitution methods. You can also solve them using the comparison method. Which method works best depends on which method the person solving them is comfortable with.
Multiplication problems can be solved by consulting a multiplication table. Large numbers can be multiplied using a technique called Long Multiplication. One can also use an electronic calculator.
Multiply every term in both equations by any number that is not 0 or 1, and has not been posted in our discussion already. Then solve the new system you have created using elimination or substitution method:6x + 9y = -310x - 6y = 58
14x6=84+2=86
5x - 4y ≥ -203x - 2y ≤ -8y ≥ -3