4 years ago

Solve the system of equations.

Mathematics

1 answer:

lys-0071 [83]4 years ago

6 0

Step-by-step explanation:

Solve the system via elimination (add the equations):

-10y + 9x = -9

+ (10y + 5x = -5)

-----------------------

14x = -14

x = -1

Plug in the value for 'x' into the second equation:

-10y + 5(-1) = -5

Solve for y:

-10y - 5 = -5

--> -10y = 0

--> y = 0

x = -1

y = 0

You might be interested in

Solve this system of equations by graphing. First graph the equations, and then type the solution. y= x+3 y=2x

Yuliya22 [10]

Answer:

(3,6)

Step-by-step explanation:

Y=X+3

Y=X2

X+3=2X

X-2X= -3

-x=-3

x=3

then Y=2X

Y=2×3

Y=6

(3,6)

3 0

3 years ago

Find x such that 2x^2 +2x=12

solmaris [256]

Answer:

2 and -3

Step-by-step explanation:

2x^2=4x

4x+2x=12

6x=12

how many times does 6 go into 12?

right, 2 times!

x=2

---

2x^2+2x-12=0

x^2+x-6=0

(x+3)(x-2)=0

X=-3 and 2

4 0

3 years ago

Which fraction is bigger 30\100 or 3\10

Igoryamba

They are actually equivalent because 3 is a factor of 30 because 3x10
And 10 is a factor of 100 so 10x10

5 0

3 years ago

Read 2 more answers

I. am. tired. of. posting. questions. over. and. over. again. I so serious this is a grade and today is my last day of school an

aleksklad [387]

Answer:hi

Step-by-step explanation:plz like and brainliest i am noob I really need this plz

3 0

3 years ago

Read 2 more answers

Simplify question question 18<br><br> ILL MARK BRAINLIST

Ksju [112]

Answer:

$x^9y^3$

Step-by-step explanation:

Step 1: Write expression

$(\frac{x^{\frac{3}{4} }}{y^{\frac{-1}{4} }} )^{12}$

Step 2: Simplify Parenthesis

$(x^{\frac{3}{4} }}{y^{\frac{1}{4} }} )^{12}$

Step 3: Exponent Exponents

$(x^{\frac{36}{4} }}{y^{\frac{12}{4} }} )$

Step 4: Simplify

$(x^9 }}{y^3 )$

4 0

4 years ago

Solve the system of equations. ​

Solve the system of equations.