keniarobles749
keniarobles749
28-09-2021
Mathematics
contestada
Solve for the value of d.
Respuesta :
saharalgbory2004
saharalgbory2004
28-09-2021
Answer:
d is 9
Step-by-step explanation:
(6d+8) + (3d+1)=90
9d +9=90
9d=90-9
9d =81
d=81/9
d is 9
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