Solve the simultaneous equations 3x+y=16, x+y=10
3x+y=16 (equation 1)x+y=10 (equation 2)Solve by elimination, notice that we have two of the same y's so as they have the same sign we subtract to get 2x=6, we rearrange to get x= 3Sub this back into equation 2 to get y3+y=10 so y=7 We can check if x and y is correct by subbing them back into any equation and if it produces the answer given our x and y value is correct.
MS
Related Maths GCSE answers
All answers ▸How can you factorise x^2-9
Claire drove from Manchester to London, it took her 4 hours at an average speed of 85 km/h. Matt drove from Manchester to London, it took him 5 hours. Assuming he took the same route as Claire and took no breaks, work out his average speed in km/h.
135 is 3/8 of a number. Work out the number.
Two simultaneous questions are given as 3x+2y = 9, and x-2y = -5. Find the values for x and y