72.2k views
13 votes
21 - 6d = -15. plz, help I suck at math.

User Chaohuang
by
7.1k points

2 Answers

10 votes

Answer:

d = 1

Explanation:

6 x 1 = 6 so that leaves 21 - 6 = which is 15

User Jhanvi
by
7.1k points
6 votes

Answer:

Add 21 to both sides. divide by -6. d= -1

User Marthyn Olthof
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7.0k points