Multiply each equation by a constant that wold eliminate the y terms 2x-5y=-21 3x-3y=-18

x=-3, y=3. (-3, 3).

Step-by-step explanation:

2x-5y=-21

3x-3y=-18

simplify 3x-3y=-18 into x-y=-6

2x-5y=-21

x-y=-6

x=y+(-6)

x=y-6

2(y-6)-5y=-21

2y-12-5y=-21

-3y-12=-21

-3y=-21+12

-3y=-9

3y=9

y=9/3

y=3

x=3-6=-3

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation: