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tatiyna
3 years ago
9

Solve for and in the following simultaneous equations below; 5x−4y=8 and 2x+y=11.

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
7 0

Answer:

x=4 and y=3

Step-by-step explanation:

put one of the equations in slope form and solve

DanielleElmas [232]3 years ago
3 0

Answer:x=4 y=3

Step-by-step explanation:

5x-4y=8.............(1)

2x+y=11................(11)

From (11) y=11-2x

Substitute y=11-2x in 5x-4y=8

5x-4y=8

5x-4(11-2x)=8

Open bracket

5x-44+8x=8

Collect like terms

5x+8x=8+44

13x=52

Divide both sides by 13

13x/13=52/13

x=4

Substitute x=4 in 2x+y=11

2(4)+y=11

8+y=11

Collect like terms

y=11-8

y=3

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CLICK HERE IF YOU HAVE BIG FEET <br><br> Using the function g( x) = -2 x – 11, calculate g(-3).
Leokris [45]

════════ ∘◦❁◦∘ ════════

<h3>Answer = -5</h3>

════════════════════

<h3>Known</h3>

g(x) = -2x - 11

════════════════════

<h3>Question</h3>

g(-3) = ..?

════════════════════

<h3>Way to do</h3>

#since x inside (x) change into (-3) then it means that you only need to change x into -3

g(-3) = -2(-3) - 11

g(-3) = 6 - 11

g(-3) = -5

════════════════════

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===================
explanation 

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