An equation is shown 5 x + 3x equals 5x + 15 / 2 what value of 3 x makes this equation true

Question

Mathematics

Amina

28 January, 19:45

An equation is shown 5 x + 3x equals 5x + 15 / 2 what value of 3 x makes this equation true

+5

Answers (1)

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Kristin Bryant · Answer 1

3x would have to be 15/2.

Since we have that 5x+3x=5x+15/2, the only pieces that are different are the 3x and the 15/2. This gives us the equation

3x=15/2

If we were to go on and solve this equation, we would multiply by 2, giving us

6x=15

Then we would divide by 6:

6x/6=15/6

and x=2.5.