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umka21 [38]
3 years ago
5

If m= 7x and m = 3x + 20, what is the value of x?

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

Answer:

x =5 is the answer

Step-by-step explanation:

m =7x

m =3x+20 , it will be solved  by substituting   method  

substituting m=7x in m=3x+20

 7x =3x+20

7x-3x =20

4x =20

divide by 4 ,we get

x =5

Oduvanchick [21]3 years ago
6 0
5 because if you plug in to get the equation 3x+20=7x then subtract 3x from both sides and divide by 4 from both sides
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