2a + 3b = 5
b = a - 5
what is a and b?

The value of a= 4 and b= -1.

2a + 3b = 5 equation i

b = a - 5 equation ii

Put the value of b in equation ii into equation i

2a + 3b = 5

2a + 3(a - 5) = 5

2a + 3a - 15 = 5

5a = 5 + 15

5a = 20

Divide both side by 5

5a/5 = 20/5

a = 4

The value of a = 4

Since b = a - 5

b = 4 - 5

b = -1

The value of b is -1

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step-by-step explanation:

-387129 iq

a. (14,375+570)(5.3) b. 158,417$

step-by-step explanation:

a. you are basically just setting up the equation. f= amount of debt hence 14,375. g= how much she is borrowing from her parents weekly hence 570 and t= the interest on her debt. creating the equation.

b.   14,375+570= 14,945

      14,945 x 5.3 = 79,208.5

      79,208.5 x 2(years) = 158,417(answer)