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-7y + 21 = 3x
Add '7y' to both sides
21 = 3x + 7y
Subtract '3x' from both sides
21 - 3x = 7y
'Swop around'.
7y = -3x + 21
Divide both sides by '7'
y = -(3/7)x + 3
The slope of a straight line is the coefficient of 'x'
In this case it is ' -3/7'.
What else can I help you with?
Related Questions
What is the difference between y equals 3x plus 5 and 6 equals 3x plus 5?
what is a slope
Y equals 3x plus 5 slope?
The slope equals 3
What is the slope of y equals -3x plus 7?
The slope of y is -3x, hope that help
Slope of y equals 3x plus 6?
y = 3x + 6slope = 3
What slope does Y equals 3x plus 2 have?
3
What is the slope of y equals -3x plus 0?
-3
What is -3x plus y equals 12?
Point slope equation: Y=3X+12
What is the slope of 3x plus 5y equals -15?
-3/5
What is the slope of the line y equals -3x plus 2?
-3
Does y plus 3x equals 9 have a slope of -3?
Yup
How do you find the slope of 2x plus 3x plus 6 equals 0?
-2
What is the slope of 3x plus y equals 16?
If: 3x+y = 16 Then: y = -3x+16 whereas -3 is the slope and 16 is the y intercept
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