X +5 = -6x - 16
add 16 to both sides
x+21 = -6x
add 6x to both sides
7x+21=0
factor out the seven
7(x+3)=0
if 7 times (x+3) = 0 then (x+3) must equal zero because 7 times 0 is 0
so x+3=0
subtract three from both sides
x= -3
Answer:
<u>She needs 40.4 feet of wood.</u>
Step-by-step explanation:
➾ She had 8 pieces of wood that are 6.2 feet each, so <u>total length of wood she had</u> = 8×6.2
= <u>49.6feet</u>.
➾She needs total 90feet. of wood and she had already 49.6 feet of wood.
So, now wood she needed = 90-49.6
= <u>40.4feet</u><u>.</u>
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Hope it helps you:)
The answer is -1.
First, distribute the negative inside the parenthesis of 1/2.
Next, turn all the denominators into 6 by multiplying by 3 or 2.
-1/2 + 2/3 + -1 1/6
Changes to -3/6 + 4/6 - 1 1/6
-3/6 + 4/6 = 1/6
1/6 - 1 1/6 = -1