Determine what number to multiply the first equation by to form opposite terms for the x-variable.
2/5 x + 6y = -10
–2x – 2y = 40
multiplying the first equation will create opposite x terms.

Step-by-step explanation:

so ur gonna have to multiply 2/5 by a number to get -2

let that number be n

2/5n = -2

n = -2 * 5/2

n = - 5

check it...

2/5 *-5 = -2

-10/5 = -2

-2 = -2 (correct)

so multiplying the first equation by -5 will create opposite x terms

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40