Answer:
D (3/2
Step-by-step explanation:
<u>Simplify both side of the equation</u>: 5(4x - 10) + 10x = 4(2x - 3) + 2(x - 4)
(5)(4x) + (5)(−10) + 10x = (4)(2x) + (4)(−3) + (2)(x) + (2)(−4)
Then you distribute: 20x + −50 + 10x = 8x + −12 + 2x + −8
(20x + 10x) + (−50) = (8x + 2x) + (−12 + −8)
Combine like terms: 30x + −50 = 10x + −20
30x - 50 = 10x - 20
<u>Subtract 10x from both sides</u>: 30x − 50 − 10x = 10x − 20 − 10x
20x - 50 = -20
<u>Add 50 to both sides</u>: 20x - 50 + 50 = -20 + 50
20x = 30
<u>Divide both sides by 20</u>: 20x / 20 = 30 / 20
<em>x = 3/2</em>
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Boom! I hope that helped :)
•sum of the angles in a triangle = 180°
•sum of the angle in a quadrilateral = 360°
•opposite angles are equal
•for two parallel lines and a transversal, corresponding angles are equal, and alternate angles are equal.
•If it already has an angle for a triangle subtract that by 180 and divide it by two you have the other two angle, if you already have two angles on a triangle add those together and subtract from 180 thats the last angle, same for a quadrilateral but you subtract by 360 instead.
4.2x - 1.4y = 2.1
-1.4y = -4.2x + 2.1
y = (-4.2/-1.4)x + 2.1/-1.4
y = 3x - 1.5 <==
The answer to the question is $4.7
