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alexandr402 [8]
2 years ago
15

One number is eight more than a second number. Five times the first is 8 less than 2 times the second. Find the numbers.

Mathematics
1 answer:
Elena-2011 [213]2 years ago
4 0

Step-by-step explanation:

let the 2 numbers be x and y.

x - 8 = y --(1)

5x = 2y - 8 --(2)

sub (1) into (2):

5x = 2(x - 8) - 8

5x = 2x - 24

3x = -24

x = -8

sub x = -8 into (1):

y = -8 - 8 = -16

first number is -8 and second number is -16.

Topic: algebraic equations + simultaneous equation

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

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6 0
2 years ago
Y=4x+28 sorry some is cut off
Rus_ich [418]
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4
x
4
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y
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−
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+
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-
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x
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y
=
4
x
-
28
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope:
4
4
y-intercept:
−
28
-
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Any line can be graphed using two points. Select two
x
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4
x
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2
8

28
x
28
x
28
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2
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7 0
3 years ago
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