Question

This is a linear equation: 2 (a - 4) = 4a - ( 2a + 4)

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Given equation is 2a−2=4−4a

First check for 1:

2×1−2=4−4×1

2−2=4−4

0=0

Since equality is correct, then 1 is root of the equation.

Then check for −1:

2×(−1)−2=4−[4×(−1)]

−2−2=4+4

−4

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=8

Since equality is incorrect, then −1 is not root of the equation.