Respuesta :

{b,a} = {9,12} HOPE IT HELPS.

The values of a and b respectively of the two given algebraic equations are; 12 and 9.

How to Solve Algebra?

We are given the equations;

b = ³/₄a       ------(eq 1)

a + b = 21    -----(eq 2)

Put ³/₄a for b in eq 2 algebra to get;

a + ³/₄a = 21

⁷/₄a = 21

Multiply both sides by 4 to get;

7a = 84

a = 84/7

a = 12

b = ³/₄ * 12

b = 9

Thus, we conclude that the values of a and b respectively are 12 and 9.

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