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3 years ago

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-3x-6y=11. 2x+y = 4 solving linear systems using multiplication and addition show your work

1 answer:

sladkih [1.3K]3 years ago

3 0

<span>Example<span>Problem<span><span>Use elimination to solve the system.</span> x –<span> y = </span>−6x <span>+ y = 8</span></span> </span><span> Add the equations.</span><span> <span><span>2x = 2</span>x = 1</span><span>Solve for x.</span></span><span> <span>x<span> + y = 8</span><span>1 + y = 8</span>y = 8 – 1y = 7</span><span>Substitute x = 1 into one of the original equations and solve for y.</span></span><span> <span>x<span> – y = −6</span>1 – 7 = −6−6 = −6 TRUE</span><span>x<span> + y = 8</span>1 + 7 = 88 = 8TRUE</span><span>Be sure to check your answer in both equations!</span></span><span>AnswerThe solution is (1, 7). </span></span>

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2/9x3 in simplest form

Nastasia [14]

Answer:

Helllo its 2/3

Step-by-step explanation

2/9 times 3/1=2/3

8 0

3 years ago

How this is hard and im hating this right now :/

vivado [14]

Answer:

$\boxed{\dfrac{y}{x}}$

Step-by-step explanation:

$\dfrac{\dfrac{1}{x} }{\dfrac{1}{y} } \ \text{can also be written as} \ \dfrac{1}{x} \div \dfrac{1}{y}$

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

$\rightarrow \dfrac{1}{x} \div \dfrac{1}{y}$

<u>Simplifying the expression using "a ÷ b = a x 1/b"</u>

$\rightarrow \dfrac{1}{x} \times y$

$\rightarrow \boxed{\dfrac{y}{x}}$

6 0

2 years ago

15-1.5/d in word phrases

Nat2105 [25]

Fifteen minus the quotient of one point 5 divided by a number

7 0

3 years ago

Read 2 more answers

The square of an integer creates a

Georgia [21]

Answer:

It creates a positive integer.

Step-by-step explanation:

Integers are whole number which could be negative or positive. Examples are; 2, 3, -1, -7 -5 etc.

Whenever an integer is squared, a positive integer is created. For example, let us consider integers; 3, 4, -3 and -4.

$(3)^{2}$ = 3 × 3 = 9

$(-3)^{2}$ = -3 × -3 = 9

Also,

$(4)^{2}$ = 4 × 4 = 16

$(-4)^{2}$ = -4 × -4 = 16

Therefore, the square of an integer creates a positive integer.

4 0

3 years ago

-5x + 4y = 3<br> x = 2y - 15<br> solve for x and y<br> I'm failing please send help<br>

inn [45]

Answer:

<u>Let's solve for x.</u>

−5x + 4y = 3

<u>Step 1: Add -4y to both sides.</u>

−5x + 4y+ −4y =3+ −4y

−5x = −4y +3

<u>Step 2: Divide both sides by -5.</u>

-5x divided by 5 = -4y+3 divided by -5

x=4/5y + −3/5

Step-by-step explanation:

4 0

3 years ago