Nan cut a submarine sandwich into 4 equal parts and ate one part. what fraction represents the part of the sandwich Nan ate?

The solution of the equation is -2x - 7y = -4

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the value of addition of both equations be = C

Let the first equation be represented as = A

The value of A is

5x - 9y = 1   be equation (1)

Let the second equation be represented as = B

The value of B is

-7x + 2y = -5   be equation (2)

Now , the addition of equation (1) + equation (2) is

The value of C is = equation (1) + equation (2)

The value of C is 5x - 9y = 1 + -7x + 2y = -5  

5x + ( -7x ) = -2x

-9y + 2y = -7y

1 + ( -5 ) = -4

Therefore , the equation is  -2x - 7y = -4

Hence , the solution of equation C is  -2x - 7y = -4

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Answer:

Solution = -2x-7y=-4

Step-by-step explanation:

Add the x-component to the x-component, add the y-component to the y-component, add the number to the number.

It looks like this

5x + (-7x) = -2x

9y + (-2y) = -7y

1 + (-5) = -4

Then, put the solutions in the places where you see them in the equation, x goes first, y comes second, then this equals the number value.

-2x - 7y = -4