For this case, the first thing we must do is define a variable.
We have then:
x: unknown number.
We then have the following equation:
[tex] 2x + 10 = 40
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To clear the value of x we follow the following steps:
Step 1:
Pass the value of 10 subtracting:
[tex] 2x = 40 - 10
2x = 30
[/tex]
Step 2:
Pass the value of 2 dividing:
[tex] x = \frac{30}{2}
x = 15
[/tex]
Answer:
a 2 step equation that equals 15 is:
[tex] 2x + 10 = 40 [/tex]