If 38 is added to 5/9 of a number, the result is 128. find the number

162

Step-by-step explanation:

Let x be the unknown number

5/9 x +38 = 128

Subtract 38 from each side

5/9 x +38-38 = 128-38

5/9x = 90

Multiply each side by 9/5 to isolate x

9/5 * 5/9x = 90 * 9/5

x =162

The number is 162

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: