2. Solve the following: a. When six is added to four times a number the result is 50. Find the number.
b. The sum of a number and nine is multiplied by -2 and the answer is -8. Find the
number.
c. The length of a rectangular map is 37,5 cm and the perimeter is 125 cm. Find the
width.​

a = 11

b = -5

c = 25

Step-by-step explanation:

a.

6 + 4x = 50

50 - 6 = 44

4x = 44

x = 11

b.

(x+9) * -2 = -8

(x+9) = 4

x = -5

c.

2(37.5) + 2(x) = 125

75 + 2x = 125

125 - 75 = 2x

50 = 2x

x = 25

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check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

b and c

step-by-step explanation: