22-09-2020
Mathematics

contestada

14
0.75(8b+4)−1=4b+140

Respuesta :

22-09-2020

Answer: b=6

Step-by-step explanation:

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kricket326 kricket326

22-09-2020

0.75(8b+4)-1=4b+140
6b+3-1=4b+140
6b+2=4b+140
6b+2-2=4b+140-2
6b=4b+138
6b-4b=4b-4b+138
2b=138
2b/2=138/2
B=69

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