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2 years ago

The table can be used to determine the solution of equations, 2x − 2y = 6 and 4x + 4y = 28.

Mathematics

2 answers:

natta225 [31]2 years ago

7 0

we have

$2x-2y=6$ ------> equation $1$

$4x+4y=28$ ------> equation $2$

Multiply by $2$ the equation $1$

$4x-4y=12$ ------> equation $3$

Sum equation $2$ and equation $3$

$4x+4y=28\\ 4x-4y=12\\ ------\\ 8x=40\\ x=40/8\\ x=5$

Substitute the value of x in the equation $2$

$4x+4y=28$

$4*5+4y=28\\ 4y=28-20\\ 4y=8\\ y=8/4\\y=2$

therefore

the answer is the option B

$(5,2)$

tester [92]2 years ago

3 0

B is the correct answer to your question

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Answer:

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Step-by-step explanation:

Given

See attachment for pyramid

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Required

Vikram's error

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By comparing the calculated expression with

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Option (b) is correct

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Step-by-step explanation:

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Read 2 more answers

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