1. Find the solution of the simultaneous equation: 2x − 5y = 15,

2x − 7y = 11.

(x, y) = (-10, -7)

Step-by-step explanation:

#1 Multiply the first equation by 7

#2 Then multiply the second equation by 5

1. 14x - 35y = 15

2. 10x - 35y = 55  (-

    4x           = -40

                x = -10

Then go back to equation one and replace "x" with -10

2(-10) - 5y = 15

-20 - 5y = 15

-5y = 15 + 20

-5y = 35

5y = -35

y = -7

The answer is

(x, y) = (-10, -7)

Hope this helps!

Have a nice day!

If you find my answer helpful

Pls consider marking my answer as Brainliest! It would mean a lot!

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b