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OLga [1]
3 years ago
8

What is the solution to this equation 9x-4(x-2)=x+20

Mathematics
2 answers:
forsale [732]3 years ago
7 0

Answer:


Step-by-step explanation:

9x(x) -4(-2)= x+20

9x+8= x+20

9x=x+12

8x=12

8/12

x= 0.7


Yakvenalex [24]3 years ago
7 0

Answer:

x=3


hope it helps

Step-by-step explanation:

reorder the forms

9x-4(x-2)=x+20

         ↓

9x-4(-2+x)=x+20

          ↓

9x+(-2*-4+x*-4)=x+20

          ↓

9x+(8+-4x)=x+20

reorder the terms

8+9x+-4x=x+20

combine like terms: 9x+-4x=5x

8+5x=x+20

reorder the terms

8+5x=20+x

solve for x

4x=12

  ↓


x=3


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