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Solve the simultaneous equations, 8x + 4y = 4 and 6x - 18y = 16

8x + 4y = 4,4y = 18 - 8x,2y = 2 - 4x,18y = 18 - 36x,6x - 18y = 16,18y = 6x - 16,6x - 16 = 18 - 36x,42x = 34,x = 34/42 = 17/21,18y = 90 - 36(17/21),18y = 426/7,y = 71/21

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Solve the simultaneous equations, 8x + 4y = 4 and 6x - 18y = 16

Related Maths GCSE answers

How do I solve 2x^2 -x -6 = 0

For the function given by f(x) = x² - 5x - 6, solve for f(x)=0 by factorising.

How do you use the quadratic formula?

n sweets, 6 are orange, the rest are yellow. Sophie takes at random a sweet. She eats the sweet. Sophie then takes at random another sweet. She eats the sweet. The probability that Sophie eats two orange sweets is 1/3. Show that n² – n – 90 = 0

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