Answer:
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Step-by-step explanation:
If you graph x=-1, you will get a line with x-intercept -1 and no y-intercept. If you do not have either of these things, your line does not have a constant slope.
this is to hard and I like math
Question -
6 + 8d = 7d
Solution-
6. = 7d - 8d
6. = -d
d. = -6
6 + 8(-6) = 7(-6)
6 - 48. = -42
-42. = -42
LHS= RHS
Hence value of d is -6
hope it helps
