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10-05-2020
Mathematics

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Solve the following sums:
a) 4(a+1)=2 b) 3-9x=-6-8x c) 3(4x-1)=7(2x-5)

Respuesta :

10-05-2020

Step-by-step explanation:

A. 4(a + 1) = 2

= 4a + 4 = 2

= 4a = 2-4 = - 2

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

B. 3 - 9x = - 6-8x

3 + 6 = - 8x +9x

9 = x

C. 12x - 3 = 14x - 35

- 3 + 35 = 14x - 12x

32 = 2x

32 / 2 = x

16 = x

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