solve this simulatneous equations (with clear algebraic working) : 5x-2y = 33 , 5x + 8y = 18


5x -2y = 33 (substract) 5x + 8y = 18
-10y = 15
y = -1.5
5x + 8(-1.5) = 18
5x = 30
x= 6

LE

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Solve 3x-8=19


Solve this simultaneous equation for x: 3x + y = 10, x + y = 4


v = u + at, u = 1 a = -3 t = 1/2, Work out the value of v.


Make x the subject of the formula 4(2x-y) = 3ax - 5