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Solve 3x - 4 = 5

How to solve 3x - 4 = 5? Get the answer and stepwise instruction to solve linear equation in one one variable 𝒙.

Steps for finding the solution

We have 3x - 4 = 5

First, we move the non x terms to the RHS of the equation. To do this, we add 4 to both sides.

Note: if a = b, then a + c = b + c

Therefore, 3x - 4 + 4 = 5 + 4

or, 3x = 9

Next, divide both sides by 3, which is the coefficent of x

Note: if a = b, then a ÷ c = b ÷ c

3x/3 = 9/3

x = 9/3

To simplify, divide both numerator and denominator by 3, which is the GCF of 9 and 3:

x = 3/1 or, x = 3

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𝒙 =

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