Answer:
the last one
Step-by-step explanation:
Heres your answer 3x^2 - 14x - 8 = 0
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<span>Question:
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3n - 7 + 2n = 8n + 11
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Combine like terms:
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5n - 7 = 8n + 11
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subtract 8n from both sides:
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-3n - 7 = 11
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Add 7 to both sides
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-3n = 18
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Divide by -3 on both sides:
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n = -6
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Answer: n = -6
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Answer:
box contains - 3
Step-by-step explanation:
a(x - 3) + 2x = -(x - 5) +4 Remove the brackets on both sides
ax - 3a + 2x = -x + 5 + 4 Subtract 2x from both sides.
ax - 3a + 2x - 2x = -x - 2x + 9
ax - 3a = - 3x + 9
ax - 3(-3) = - 3x + 9
ax + 9 = - 3x + 9
Now if you make a = -3 then both sides with have - 3 for the x coefficient.
Any number could be put in for x and it will make the answer on both sides equal. Notice you could subtract 9 from both sides and it will not change the condition of the problem.
