2x3 + 2x2 + 3x + 5 and 8x3 +6x2 - 6x +3
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Step-by-step explanation:
6+4+3x+5 = 3x+15
which implies 3x+15=0
24+12-6x+3= 39-6x
which implies -6x+39= 0
Substitute
3x+15=0
-6x+39=0
+ - -
9x-24=0
9x=24
x=24/9 = 2.66...
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Step-by-step explanation:
hope it helps
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