Solve the following simultaneous equations: 2y + 3x = 19 and 7x + y = 26.

2y + 3x = 19y + 7x = 26
so2y + 3x = 192y + 14x = 52
minus the top from the bottom11x = 33x= 3
put x into the initial questiony + 7(3) = 26y = 26-21y=5

HH

Related Maths KS3 answers

All answers ▸

Where does the graph x^2-3x-4 cross the x axis?


This rectangle is twice as long as it is wide. The perimeter of the rectangle is 30cm. What is the area?


simplify the following equation: 3a x 4ab


If x=3 and y=7, which of the following gives value of 23?