Question

H + 5.4 = −5.4




pls help if you know

Answer 1

`\sf H = -10.8`

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`\sf Solve`

• 
  `\sf Move~terms~not~containing~H~to~the~right.`

`-5.4 + 5.4 = -10.8`

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now, note that if this was actually subtracting, logically, the answer would be H = 0

however, this is an addition problem, meaning to add a negative and a positive integer to get a negative integer.

Answer 2

Multiply 5.4 x2 and put a negative symbol in front