Answer:
k = -13
Step-by-step explanation:
-4(k +2) = -k +31
you multiply the bracket by -4
-4k-8 = -k+31
Collect the like terms
-4k+k = 31+8
-3k =39
divide both sides by -3
Distributive property
(-4 x k + -4 x 2)
-4k + -8 = -k + 31
subtract 31 from both sides.
-4k - 39 = -k
add 4k to both sides
-39 = 3k
divide 3 from both sides
-13 = k
