How do you simplify 9(2z+6)+(z+3)+3(10z+12)?

2 Answers
Shiva Prakash M V
Mar 6, 2018

9(2z+6)+(z+3)+3(10z+12)=49z+93

Explanation:

9(2z+6)+(z+3)+3(10z+12)
=9×2(z+3)+(z+3)+3×2(5z+6)
=18(z+3)+(z+3)+6(5z+6)
=19(z+3)+6(5z+6)
=19z+19×3+6×5z+6×6
=19z+57+30z+36
=19z+30z+57+36
9(2z+6)+(z+3)+3(10z+12)=49z+93

Venecia G. · Stefan V.
Mar 6, 2018

49z+93

Explanation:

  • Expand out the brackets
    18z+54+z+3+30z+36
  • Put similar subjects together
    18z+z+30z+54+3+36
  • Add together
    49z+93
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