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Temka [501]
3 years ago
14

Solving a One-Step Equation

Mathematics
1 answer:
natima [27]3 years ago
8 0

Answer/Step-by-step explanation:

To solve the given expression, x + 12.7 = -25.2, the following steps as well as justification for each step is given below:

Step 1: state the given expression

x + 12.7 = -25.2 (given)

Step 2: solve for x by subtracting 12.7 from each side of the equation.

x + 12.7 - 12.7 = -25.2 - 12.7

Step 3: Apply the additive inverse rule and simplify (i.e the additive inverse of 12.7 is -12.7. when added, it gives us 0)

x + 0 = -37.9 (additive inverse/simplification)

Step 4: additive identity rule (i.e. the 0 added to x = 0)

x + 0 = -37.9 (identity property of addition)

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