Equation 1) -4x + 7y = 1
Equation 2) 25 = 2x + 5y
For both equations, move the variables all onto one side, preferably the left side.
To do so, for equation 2, subtract 2x from both sides, as well as subtracting 5y from both sides, and then subtracting 25 from both sides.
2) -2x - 5y = -25
1) -4x + 7y = 1
Multiply all of equation 2 by 2.
2) 2(-2x - 5y = -25)
2) -4x - 10y = -50
1) -4x + 7y = 1
Subtract the equations from each other.
-17y = -51
Divide both sides by -17.
y = 51/17
y = 3
Plug in 3 for y in the first equation.
-4x + 7y = 1
-4x + 7(3) = 1
-4x + 21 = 1
-4x = 1 - 21
-4x = -25
x = -25/-4
x = 25/4
x = 6 1/4
(6 1/4, 3)
~Hope I helped!~
This equation defines a line.
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The y-intercept is (0,4)
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To find the x-intercept, set y=0 and solve for 'x'.
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0 = -6x + 4
6x = 4
x = 2/3
which is the point (2/3,0)
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With two points you can draw a line.
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(x-2)16=12x
16x-32=12x
4x=32
x=8
B is 70 a is 110 the awnser to question a is two angles next to eachother will equal 110 and in the case of a triangle the two adjacent angles will always be the same as a points opposite angle
Answer:
it would be the second answer
Step-by-step explanation:
It would be the second answer because it is the only one that makes sense.