Write an equation for each situation and the solve

Question

Ten decreased by twice a number is the same as -28. Find the number

Answer 1

To solve this problem, we need to break down what each aspect is saying and turn it into an equation.

"Ten decreased by" means that we start with 10 and subtract

10 - ...

"twice a number" would be a variable, x, multiplied by 2

10 - 2x

"is the same as -28" shows that the equation equals 28

10 - 2x = -28

From here you will want to isolate x to solve.

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