4 years ago

I'm lost.. How do you even start it???

2 answers:

7 0

$2x+y=4\\
-x+y=1\\\\
2x+y=4\\
\underline{x-y=-1}\\
3x=3\\
x=1\\\\
1-y=-1\\
y=2
$

3 0

A) 2x + y = 4
B) -x + y = 1

Multiply B) by 2
B) -2x + 2y = 2 then add to A)
A) 2x + y = 4

3 y = 6
y = 2

B) -x + y = 1
-x +2 =1
x = 1

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Crazy boy [7]

Answer:

The answer is " $7x^2 +10x -7$ "

Step-by-step explanation:

Let the given value is:

$\to \bold{-2x +8x -9 +4x +7x^2 +2}\\\\$

Solving the given value:

$\to7x^2 -2x +8x +4x-9 +2\\\\\to7x^2 +10x -7\\\\\to7x^2 +10x -7\\\\$

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3 years ago

OLga [1]

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RideAnS [48]

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BabaBlast [244]

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3 years ago