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 ▸

Solve for x when x2+16x+28=0


Solve the following algebraic equation: x^2 + 6x + 9 = 0


Line L1 is y = 4x + 5, line L2 is 4y - 16x -2 = 0. Show that the lines are parallel to each other


Do particles expand when heated?