How would you solve the simultaneous equations y=x+1 and y=4x-2

You could solve this equation by using substitution, since both equations are in a' y = ' form. You can substitute the first equation into the first, as they both equal y, they both equal each other : x+1=4x-2 . You want to get all the x terms on one side and all the other numbers on the other side of the equals sign. Subtract x from both sides of the equation, to get 1=3x-2. Then add 2 to both sides to get 3=3x. To find x, you can divide both side by 3, so x=1. To finish off solving the simultaneous equations, sub the x=1 back into one of the original equations: y=1+1, so y=2. To check, you can sub your x and y values into the other equation to see if it still makes sense: 2=(4 x 1) -2. This makes sense.

PK
Answered by Priya K. Maths tutor

4705 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations 5x + 2y = 4 and x - y - 5 =0


Maths A-level Question, Rates of change involving a cylindrical vessel.


How do I work out the measurement of an angle in a right-angle triangle?


The equation of line L1 is y = 3x-2 and the equation of line L2 is 3y-9x+5 = 0. Show that these two lines are parallel.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning