Multiply each equation by a constant that would help to eliminate the y terms.

2 x minus 5 y = negative 21. 3 x minus 3 y = negative 18.

What are the resulting equations?

6 x minus 15 y = negative 63. Negative 15 x + 15 y = 90.

6 x minus 15 y = 63. Negative 15 x + 15 y = 90.

6 x minus 15 y = negative 63. Negative 15 x + 15 y = negative 90.

6 x minus 15 y = negative 63. Negative 15 x + 15 y = 90.

Therefore the required resulting equation is

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

Step-by-step explanation:

Given:

        ......................Equation ( 1 )

        ......................Equation ( 2 )

To Find:

Expression after multiplying to eliminate y term,

Solution:

So to eliminate 'y' term we need to multiply equation 1 by a constant 3 and equation 2 by a constant -5,  such that equations  becomes

.....( 1 )

 .....( 2 )

so now by adding new equation one and two we can eliminate y term that means -15y and +15y will get cancel,

Therefore the required resulting equation is

6 x minus 15 y = negative 63.

Negative 15 x + 15 y = 90

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

47 - 90 = 43

43 - 180 = x

x = 137