Solve the simultaneous equation: 3x+2y=8, 2x+5y=-2?
6x+4y=16, 6x+15y=-6
11y=-22
y=-2
3x=8+4=12 x=4
x=4, y=-2
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Related Maths GCSE answers
All answers ▸Solve the simultaneous equation: 3x+y =-4 and 3x-4y=6
If the probability of picking a red ball out of bag A is 2/5 and the probability of picking a red ball out of bag B is 3/7, what is the chance that you will pick exactly 2 red balls if you pick 2 balls from A and 1 ball from B? The balls are not replaced.
How to factorise a quadratic
Factorise and solve x^2 -8x=15=0