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Y = x + 4y = x² + 4x(as both are equal to y, they can be equated)So: x² + 4x = x + 4(Rearrange to make the equation equal 0 - subtract x and 4)x² + 3x - 4 = 0(factorise)(x...

To add or subtract fractions, first you need to find a common denominator between the fractions. So, if you are trying to add 1/2 and 3/5, you can find the common denominator between 2 and 5 by multiplyi...

Step 1: Expand the brackets 6 - 4x - 3x - 3 Step 2: Collect terms 3 - 7x Cannot Simplify further, answer is 3- 7x

Ticket = T, popcorn bucket = PAnnie - 2T+P=18 (1)Louis - 4T + 3P = 45 (2)

scaling up:
(1) x 3:
6T + 3P= 54 (3)
solving:(3)-(2)2T = 9T = 4.5substitute back in2T + p = 18(2 x4.5) +...

1/3 + 1/5 = 8/15 (amount spent on rent and travel) 1 - 8/15 = 7/15 (amount spent on living expenses) 420 ÷ 7/15 = 899.999... = £900...