My brother is 4 years younger than my sister and 5 years older than me in 2 years. If I am 15 now how old will my sister be when
1 answer:
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Answer:
x=3
Step-by-step explanation:
The approach is not very different from regular fractions.
You have to get to a common denominator to be able to add them.
10 is a good denominator (multiply the denominators).
multiply the first term by 5, and the second one by 2:
7x + 9 = 30
7x = 30 - 9
x = 3
let me know if you need more details on one of the steps
The expression given in the question is expressed as a power is x^10
According to the law of indices, multiplication of powers becomes addition as shown:
Given the following expressions;
This can also be expressed as:
This shows that the expression as power is x^10
Learn more here: brainly.com/question/20298728