Isabella594 Isabella594

11-10-2018
Mathematics

contestada

The equations 2x+7=3 and bx-10=-2 have the same solution for x. Find the value of b.

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rilayyyyy rilayyyyy

11-10-2018

Solve both equations for x:

2x+7 = 3

2x = -4

x = -2

Plug x into the equation which contains b:

b(-2) -10 = -2

-2b = 8

b = -4

Answer:

b = -4

x = -2

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