7+x/5 - 2x-y/4 = 3y - 5, 4x-3/6 + 5y-7/2 = 18 - 5x

if it is an individual equation

7+5x −2x−4y =3y−5

is in pic 1

for question2 is in pic 2

if it is a simultaneous equation the answer is in pic 3 plz Mark me brainliest answer

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40