Solve the equation and enter the value of d below. 6d + 7 d= 39
2 answers:
Hello!
6d + 7d = 39 <=>
<=> 13d = 39 <=>
<=> d = 39 : 13 <=>
<=> d = 3 => 6 × 3 + 7 × 3 = 39
Good luck! :)
Answer:
d=3
Step-by-step explanation:
13d=39
d=39/13
d=3
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