Mathematics, 09.03.2020 00:39 tiffcarina69

What is solution to linear system below?

Answers: 3

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Answers

Answer from: chloesmolinski0909

The answer to your question is (0, 7)

Step-by-step explanation:

Data

Equation l 2x - 2y = -14

Equation ll y = -6x + 7

Process

1.- Solve this system by substitution

- Substitute equation ll in equation l

2x -2(-6x + 7) = -14

- Expand

2x + 12x - 14 = -14

-Simplify

14x = -14 + 14

14x = 0

x = 0/14

x = 0

2.- Substitute x in equation ll to find y

y = -6(0) + 7

y = 0 + 7

y = 7

3.- Solution

(0, 7)

Answer from: QueenBlumple6598

option 2(0, 7)

Step-by-step explanation:

The given system of linear equations is expressed as

2x - 2y = - 14- - - - - - - - - - - 1

y = - 6x + 7- - - - - - - - - - 2

We would apply the method of substitution. Substituting y = - 6x + 7 into equation 1, it becomes

2x - 2(- 6x + 7) = - 14

2x + 12x - 14 = - 14

14x - 14 = - 14

Adding 14 to the left hand side and the right hand side of the equation, it becomes

14x - 14 + 14 = - 14 + 14

14x = 0

Dividing the left hand side and the right hand side of the equation by 14, it becomes

x = 0

Substituting x = 0 into equation 2, it becomes

y = - 6 × 0 + 7

y = 7

Answer from: Quest

step-by-step explanation:

Answer from: Quest

Answerthe simplified expression is $2x + 28$ explanationthe given expression is, $2(10) + 2(x - - 4)$ let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes, $2(10) + 2(x + 4)$ we now expand the parenthesis to get, $20 + 2x + 8$ we group like terms to obtain, $2x + 8 + 20$ this simplifies to, $2x + 28$

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