Question

solve the following linear equations i) 21 - 3 (x-7) = x+20​

Answer 1

Answer:

⇒21−3x+21=x+20

⇒42−3x−x−20=0

⇒−4x=−22

⇒x=

4

22

∴ x=

2

11

=5.5

Hence, x=5.5 is the solution of the given linear equation.

Answer 2

Step-by-step explanation:

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