3 years ago

Pls help I don’t understand

Mathematics

1 answer:

alina1380 [7]3 years ago

8 0

That is all the work needed to solve this problem

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What is the x-value of the solution to this system of equations? x = 2y − 4 7x + 5y = -66

saveliy_v [14]

X=2y - 4 7 xI hope it helps sorry if it doesn’t

3 0

4 years ago

O translațoe sete difinită de formulele x1 = x + 1 si y1 = y - 1 .

Maksim231197 [3]

Answer:

$(3,-4)$

Step-by-step explanation:

We have the equations

$x_{1} =x+1\\y_{1}=y-1$

Which are the coordinates for the point $A_{1}$ .

We know by given that $A(2,-3)$ , which means $x=2$ and $y=-3$ .

Replacing these values in the equations, we have

$x_{1} =x+1 \implies x_{1} =2+1=3\\y_{1}=y-1 \implies y_{1}=-3-1=-4$

Therefore, the coordinates for point $A_{1}$ are $(3,-4)$ .

7 0

3 years ago

Find a solution to the following system of equations. –2x + 5y = 8 2x + 2y = 6

Anika [276]

With multiple choice questions, I find it best to plug in on this one.
For a) x=2 and y=1 so, plug it into the equation.
1) -2(2) + 5(1) = 8 and than you check the other one
2) 2(2) + 2(1) = 6 if it works in both than that is your answer. If not than you try another choice until you get one that works in both equations.

3 0

3 years ago

Read 2 more answers

Is the solution greater than, less than, or equal to 29?<br><br> 4(5 + 6) - 15

Semmy [17]

Answer:

Step-by-step explanation:

4(5 +6) - 15

4(11) - 15

= 44 - 15

= 25

The solution is equal to 29