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SVEN [57.7K]
3 years ago
9

Solve the system of equations. x - 4y = 5 x = 3y - 2 ( , )

Mathematics
2 answers:
almond37 [142]3 years ago
5 0
Well if x = 3y - 2, then everywhere u see and x remember it equals 3y - 2
so (3y - 2) - 4y = 5 then u distribute 
-3y + 2 - 4y = 5 then combine the y's
-7y + 2= 5 then subtract 2 from each side 
-7y = 3 then divide -7 on both sides
y = 3/-7 
x = -3.28


Finger [1]3 years ago
4 0
X-4y=5
x=3y-2
x-4y=5
x-3y=-2
-y=7
y=-7
x+21=-2
x=-23
HOPE I HELPED!!!
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andrezito [222]

Answer:

12

Step-by-step explanation:

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If a1 = 8 and an = an-1 + 5 then find the value of a5.
Nimfa-mama [501]

Step-by-step explanation:

A1=8

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5 0
2 years ago
10(1+3x)=-20 and -5x-8(1+7x)=-8 <br> With steps
SOVA2 [1]

(1)

10(1+3x)=-20

Cross multiply.

10+30x=-20

Isolate x on one side. So you would subtract 10 on each side. and one side will cross each other out. leaving you with,

30x=-20-10

Subtract 10 from -20.

30x=-30

Divide each side by 30 to get x.

30x÷30=-30÷30

Therefore,

x=-1

(2)

-5x-8(1+7x)=-8

Cross multiply -8(1+7x)

-5x-8-56x=-8

Isolate all x's on one side. So you would add 8 on each side. and one side will cross each other out. leaving you with,

-5x-56x=-8+8

Add 8 to -8.

-5x-56x=0

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Divide each side by -61

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Therefore,

x=0

6 0
3 years ago
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