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andrezito [222]
3 years ago
13

Solve the equation for the indicated variable ab+9=3b-5c for b

Mathematics
1 answer:
mote1985 [20]3 years ago
7 0
ab+9=3b-5c \ \ |-3b\\ \\ -3b+ab  +9=3b-3b-5c \\ \\ -3b +ab+9=-5c \ \ | -9 \\ \\-3b+ab+9 -9=-5c-9 \\ \\-3b +ab =-5c-9 \ \ / \cdot (-1) \\ \\ 3b-ab =5c+9 \\ \\b(3-a)=5c+9 \ \ /:(3-a)\\ \\b=\frac{5c+9}{3-a}

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Ms.Kelly wants to give her kids cookies but the all need to be the same amount of cookies she has 14.5 cookies for 2 kids. How m
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the x axis (left right) is the input...

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