$5.49 + $10.49=$15:49 there’s your answer
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24/4.7=x x=5.1
24+x=what you want
24+5.1=29.1 there you go
Substituting x = 3 into the first expression:
-4(3) - 8 = -12 - 8 = -20
Substituting x = 3 into the second expression:
-2(3 + 1) - 2(3 + 3) = -2(4) - 2(6) = -8 - 12 = -20
