How do you solve #5x - 6+ 2x = 15- 9+ 3x#?

Answer 1

Isaiah Anthony

#x = 3#

Step 1) Combine like terms on each side of the equation:

#(5x + 2x) - 6 = (15 - 9) + 3x#

#(5 + 2)x - 6 = 6 + 3x#

#7x - 6 = 6 + 3x#

Step 2) solve for #x# on one side of the equation while keeping the equation balanced:

# 7x - 6 + 6 - 3x= 6 + 3x + 6 - 3x#

#7x - 3x = 6 + 6#

#(7 - 3)x = 12#

#4x = 12#

#(4x)/4 = 12/4#

#x = 3#

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Answer 2

Kennedy Adams

(x = 3)

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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