Question

solve the following equations and verify your answers
i. 3(x+7)=18
ii.2(x-1)=x+2
iii.3x - 1/3=2[x-1/2]+5
iv.4(2x-1)-2(x-5)=5(x+1)+3​

Answer 1

Answer:

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i) 3(x + 7) = 18

=> 3x + 21 = 18

=> 3x = 18 - 21

=> 3x = - 3

=> x = -3/3

=> x = -1

Verification :-

here, x = -1

as per question, LHS =

=> 3(-1 + 7)

=> -3 + 21

=> 18

Hence, LHS = RHS

18 = 18

Hence, verified.

Hope it helps you.

Answer 2

Step-by-step explanation:

: The activities in the tertiary sector do not produce a good but they are an aid or a support for the production process. For example goods produced in the primary or secondary sector need transport to send them to markets.