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solve x/2 + 11 = 15

whenever we solve an equation we want to get the unknown (x) alone on one side of the equals sign, but remember whatever we do to one sign of the equation, we have to do to the other. So lets start by subtra...
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Answered by Samir P. • Maths tutor
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Solve this inequality 4y - 3 ≥ 5

1 - We treat an inequality sign like an equals sign (unless we divide by a negative number). 2 - Rearrange the inequality to get all the ys on one side and all the numbers on the other side. 3 - Simplify to ...
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Answered by Gadah A. • Maths tutor
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Solve 5x - 2= 3x + 7

1 - First we need to get all the x values on one side and all the numbers on the otherside of the equals sign. 2 - We then need simplify the equation to get 1 x. Solve 5x - 2= 3x + 7 1 - Remember, whatever y...
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Answered by Gadah A. • Maths tutor
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Factorise 2b^2 + 6b

1 - We first need to find a common factor, something that is the same in both parts of the expression. 2 - Then we need to take this out of the expression by dividing both parts of the expression by the comm...
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Answered by Gadah A. • Maths tutor
8245 Views

Mark wants to borrow money to buy a car. His bank offers him a loan of £5,000 to be payed back over 3 years at 4% compound interest. a) Work out the interest acquired in the 2nd year. b) In total how much will Mark end up paying back the bank?

In questions concerning compound interest , interest is added to principle sum at the end of each year. Therefore, the interest increases each year as you are paying interest on interest . a) To work out the...
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Answered by Laura M. • Maths tutor
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