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Try reviewing these fundamentals first.

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- Solving Simultaneous Equations

Still Confused?

Try reviewing these fundamentals first.

Still Confused?

Try reviewing these fundamentals first.

Nope, I got it.

That's that last lesson.

Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Lesson: 13:40
- Lesson: 23:26
- Lesson: 31:59

Unknown sometimes is mysterious or even scary, but let us show you unknown can be fun too. You will find more linear equations word problems related to unknown number in this lesson.

Basic concepts: Applications of linear equations, Solving systems of linear equations by graphing, Solving systems of linear equations by elimination, Solving systems of linear equations by substitution,

Related concepts: System of linear equations, System of linear-quadratic equations, Graphing systems of linear inequalities,

- 1.Two numbers have a sum of 24. Find the two numbers if the second number is 6 times the first one.
- 2.The sum of four times one number plus two times a second number is eight. The sum of three times the first number plus 5 times the second number is 24. Find the numbers.
- 3.Sarah is three times as old as her sister Jenny. In nine years the sum of their ages will be 26. How old are they now?

16.

Solving Simultaneous Equations

16.1

Determining number of solutions to linear equations

16.2

Solving simultaneous equations by graphing

16.3

Solving simultaneous equations by elimination

16.4

Solving simultaneous equations by substitution

16.5

Money related questions in linear equations

16.6

Unknown number related questions in linear equations

16.7

Distance and time related questions in linear equations

16.8

Rectangular shape related questions in linear equations

We have over 1410 practice questions in UK Year 10 Maths for you to master.

Get Started Now16.1

Determining number of solutions to linear equations

16.3

Solving simultaneous equations by elimination

16.4

Solving simultaneous equations by substitution

16.5

Money related questions in linear equations

16.6

Unknown number related questions in linear equations

16.7

Distance and time related questions in linear equations

16.8

Rectangular shape related questions in linear equations