How do you simplify #3(d-4)+2-2d+1-d#?

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Answer 1 · 2015-09-20T16:31:50

# =color(blue)(-9#

#color(blue)(3) * (d−4)+2−2d+1−d#

# = color(blue)(3) * (d) + color(blue)(3) *(−4)+2−2d+1−d#

# = 3d -12 +2−2d+1−d#

Grouping like terms:

# =color(blue)( 3d −2d−d)-12 +2+1#

# = d−d -9#

# =color(blue)(-9#