(2) Answers
y=4x+6 y=-5x-21 4x+6=-5x-21 add both sides by 5x also subtract both sides by 6 9x=-27 x=-3 plu x=-3 in y=6+4x y=6-12 y=-6
y=6+4x y=-5x-21=> 6+4x=-5x-219x=-27x=-3y=6+4*(-3)=6-12=-6y=-6Solution: (-3; -6)
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y=4x+6 y=-5x-21 4x+6=-5x-21 add both sides by 5x also subtract both sides by 6 9x=-27 x=-3 plu x=-3 in y=6+4x y=6-12 y=-6
y=6+4x y=-5x-21=> 6+4x=-5x-219x=-27x=-3y=6+4*(-3)=6-12=-6y=-6Solution: (-3; -6)