haileywagers
haileywagers haileywagers
  • 26-02-2021
  • Mathematics
contestada

what is -6(3r-8)=138

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imelianaacosta
imelianaacosta imelianaacosta
  • 26-02-2021
So 3-8 is -5 and the -6x -5 is -30r so r is 128
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Аноним Аноним
  • 26-02-2021

Answer: r=−5

Step-by-step explanation:

−6(3r−8)=138

(−6)(3r)+(−6)(−8)=138(Distribute)

−18r+48=138

Step 2: Subtract 48 from both sides.

−18r+48−48=138−48

−18r=90

Step 3: Divide both sides by -18.

−18r /−18  =  90 /−18  r= −5

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