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Simora [160]
3 years ago
14

Someone help me with this, please! i’ll mark u as brainlist

Mathematics
1 answer:
Step2247 [10]3 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

2x + 5 = 21

      -5    -5

      2x = 16

     2x/2 = 16/2 ( divided 2 on both sides)

     you get x= 8

to check your work, replace x with 8 in the equation

                            2 x 8 + 5 = 21    ( don't forget PEMDAS!!)

                               16 + 5 = 21  

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