Answer:
How to Find Area and Perimeter: 11 Steps (with Pictures ... To find the perimeter of a shape, measure each of the sides and add them all together. To find the area of a square, rectangle, or other parallelograms, multiply the length by the width. If you need to find the area of a different shape, you will need to know the formula for that shape.
The value of y-x is (-3)
<u>Solution:</u>
Given: The value of x-y=3
To find: The value of y-x

Let's multiply the equation (1) by (- 1) on both sides,


On multiplying the sign,

The above equation can also be written as,

<u>Multiplication of signs:</u>




In simpler terms, when we multiply two integers with the same signs, the result is always positive and when we multiply two integers with different signs, the result is always negative.
Answer:
I don't understand your question
Step-by-step explanation:
Answer: true!
Step-by-step explanation: i do not know but true!
Answer:
x+
y+5=0
Step-by-step explanation:
the intersection of x-2y=0 and 3x+y+5 is (
;
)
=> the line :
x+
y+5=0