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balandron [24]
3 years ago
15

Solve the system of equations using elimination. 3x – 5y = –2 4x – 7y = –3

Mathematics
2 answers:
Stolb23 [73]3 years ago
7 0
The answer to this question is Y=1 and X=1
Effectus [21]3 years ago
4 0
4(3x-5y=-2)
-3(4x-7y=-3)
__________
y=1

now you can just plug in that value of y in either original equation to solve for x

3x-5=-2

3x=3

x=1

So the solution is the point (1,1)
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How do you solve for x in a math question like this 5+4x=54-3x?
Bas_tet [7]

To solve for x, first you need to isolate all x terms on the same side so:

you start with 5 + 4x = 54 - 3x

subtract 5 from both sides to get 5 onto the left side

now you should have 4x = 49 - 3x

now add 3x to both sides to get 3x onto the right side

now you should have 7x = 49

now that you have your x on one side you can solve this like a regular one step equation and divide both sides by 7

this leads you to your answer of x = 7

hope this helps!

6 0
4 years ago
Read 2 more answers
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Oksana_A [137]

Answer: (30-18)=-9 First, I multiply the 3 to the 10. Then I solve what's in the parentheses which was -3 × 2 which got me -6.

8 0
4 years ago
Given f(x) = 13x - 9, find (f(x + h) - f(x))/h and simplify the result.
EleoNora [17]

Answer:

13

Step-by-step explanation:

Given

f(x) = 13x - 9 , then

\frac{f(x+h)-f(x)}{h}

= \frac{13(x+h)-9-(13x-9)}{h}

= \frac{13x+13h-9-13x+9}{h}

= \frac{13h}{h}

= 13

5 0
3 years ago
Help this is easy but I need the answers so I can save time
LUCKY_DIMON [66]

Answer:

2. F = 3P

   5P + 6P

   $0.9

3. B = R + 12

   G = 2R

   R + R + 12 + 2R

   27 red, 54 green, 39 blue

Step-by-step explanation:

(the answers kind of slowly build up to the final answer, but if you really need it, reply in the comments and I'll put them in)

4 0
3 years ago
If y = x + 5 and x = 3, then y = what?
Gennadij [26K]

y=8

Step-by-step explanation:

y=x+5 x=3

y=3+5

therefore

y=8

5 0
3 years ago
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