4 years ago

Here is a system of linear equations:

Mathematics

1 answer:

konstantin123 [22]4 years ago

3 0

Step-by-step explanation:

6x + 21y = 103

-6x + 23y = 51

The signs of the x coefficients are opposite. So adding the equations will eliminate the x terms.

44y = 154

y = 3.5

You might be interested in

Explain how to use grouping symbols to organize information appropriately

aleksley [76]

<span>Grouping symbols organize an algebra problem that contains multiple groups. Algebraic grouping symbols.That is parentheses, brackets, braces, radicals, and fraction lines.Also show where a group starts and ends, and help to establish the order used to apply math operations.</span>

5 0

3 years ago

18. Last time Francis checked, her credit score was 659. Since then, she applied

zepelin [54]

Answer:

634

Step-by-step explanation:

659-25=634

Poor little Francis. :(

8 0

3 years ago

Work out (3.6 x 10^-5) ÷ (1.8 x 10^2) give your answer in standard form