Question

3/4(7a-1) -(2a-1-a/2) =a+3/2

Answer 1

Answer:

3/4(7a-1) - (2a-1-a/2) = a + 3/2

(3/4 × 7a )(-1 × 3/4) - 2a + 1 + a/2 = a + 3/2

(84a/4)(-3/4) - 3a + 2 = a + 3/2

( 21a )(-3/4) - 3a - a = 3/2 - 2

-63a/4 - 4a = -1/2

-63a-16a/4 = -1/2

-79a = -1/2 × 4

-79a = -2

a = 2 / 79 (or) 1 / 39.5

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Answer 2

Step-by-step explanation:

21a/4 -3/4 -2a +1 +a/2= a +3/2

-3/4 +1 -3/2 =a+2a -a/2 -21a/4

(-3+4-6)/4 =3a -(4a+21a)/4

-5/4=3a -25a/4

-5/4=(12a-25a)/4

-5/4=-13a/4

5=13a

a=5/13