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How do you solve #5a+3-3a=-7#?

Answer 1

#a= -5#

Original Equation: #5a + 3 -3a = -7#

#5a# and #-3a# are like terms, so you can combine them

#2a+3=-7#

Now, you only have one term with a variable, and just solve for #a# by subtracting both sides by #3# then dividing by the coefficient of #a#

#2a=-10#

Thus,

#a=-5#

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Answer 2

Eva Adamson

To solve the equation (5a + 3 - 3a = -7), follow these steps:

Combine like terms on the left side of the equation. (5a - 3a = 2a), so the equation becomes (2a + 3 = -7).
Subtract 3 from both sides to isolate the variable term on one side. (2a + 3 - 3 = -7 - 3), simplifying to (2a = -10).
Divide both sides by 2 to solve for (a). (2a / 2 = -10 / 2), resulting in (a = -5).

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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.