Petro was given this system of equations. Negative 14 x minus 2 y = 24. 14 x + 8 y = negative 12.

Petro’s work is shown in the table. Where, if anywhere, did Petro first make a mistake?

Steps
Petro’s Work

Step 1

Negative 14 x minus 2 y = 24. 14 x + 8 y = negative 12. 6 y = 12.

Step 2

6 y = 12. y = 2.

Step 3

Negative 14 (2) minus 2 y = 24. Negative 28 minus 2 y = 24. Negative 2 y = 52. y = negative 26.

step 1
step 2
step 3
no mistake

answer:  

123455421

step-by-step explanation: easy

283 square feet

step-by-step explanation:

good luck

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet