What value or values of x satisfy 2|x + 5.3| = 4.2? x can only equal - 3.2. x can only equal 7.4. x can equal - 3.2 or - 7.4. x can equal - 3.2 or 7.4.

Question

Reina Boyd

Mathematics

27 September, 14:50

What value or values of x satisfy 2|x + 5.3| = 4.2? x can only equal - 3.2. x can only equal 7.4. x can equal - 3.2 or - 7.4. x can equal - 3.2 or 7.4.

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Ticklebutt · Answer 1

2 | x + 5.3 | = 4.2

| x + 5.3 | = 4.2 / 2

| x + 5.3 | = 2.1

x + 5.3 = 2.1 x + 5.3 = - 2.1

x = 2.1 - 5.3 x = - 2.1 - 5.3

x = - 3.2 x = - 7.4

solution is : x = - 3.2 or x = - 7.4