Question

1-4d is greater than or equal to 4-d
Solve for d.

Answer 1

\[\large 1 - 4d \ge 4 -d\]
you want to get d alone. Start by adding d to both sides (that'll get rid of -d on the left)

Answer 2

\[1-5d \ge 4-2d\]
?

Answer 3

-d+d is zero

-4d + d is -3d

Answer 4

I'm confused.

Answer 5

-1+1 is zero... -4 + 1 is -3

same thing applies to -d+d and -4d + d

Answer 6

So what does the equation look like now?

Answer 7

add d to both sides, and simplify this \[\large 1 - 4d +d \ge 4 -d + d\]

Answer 8

So...what do I do now?

Answer 9

simplify it :P like i showed above... the -d+d is zero. -4d+d is -3d. So simplify the above

Answer 10

so the -d+d cancels off...what about the -4d+d?\[\large 1 - 4d +d \ge 4 \]

Answer 11

1−4d+d≥4
1-4d+d-4≥_
?

Answer 12

simplify the left, leave the 4 alone for now

1−3d≥4

Answer 13

now subtract 1 on both sides