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5x-3x+7=3x-1 4r + (2)/(4) r + 14 = 5r - (3)/(4) r + 1 - 3
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5x-3x+7=3x-1

4r + (2)/(4) r + 14 = 5r - (3)/(4) r + 1 - 3

User Bersan
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1 Answer

3 votes

1). 5x-3x+7 = 3x-1

2x + 7 = 3x - 1

3x-2x=7+1

x=8

2)


4r + (2)/(4) r + 14 = 5r - (3)/(4) r + 1 - 3\\ \\5r-4r-(3)/(4) r - (2)/(4) r = 14-1+3\\ \\r-(5)/(4)r =16\\ \\(4)/(4)r-(5)/(4)r =16\\ \\-(1)/(4)r=16\\ \\ r=-64

User Jmurphyau
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