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liberstina [14]

3 years ago

9

The solution of the equation 7x+2=23 is ?

2 answers:

faltersainse [42]3 years ago

4 0

7×+2=23
-2 -2
7x=21
x=3

ikadub [295]3 years ago

3 0

7x+2=23
Move 2 to the other side
7x=23-2
7x=21

To isolate the x divide both sides by 7
x=3

To check plug the value of x back in

7(3)+2=23
21+2=23
23=23

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