Solve the simultaneous equations. 2x + y =10 and x + y = 4

We should eliminate one of the variables. We do this by writing them on top of one another.3x + y = 10x + y = 4 -
2x = 6 We want to know what X is and what Y is. We currently know what 2x is so we divide the answer by 2.
x = 3
To find out what y is, we substitute 3 into one of the equations.
x + y = 43 + y = 44 - 3 = yy = 1
We then use the other equation to check if we are correct.
3x + y = 10(3 x 3) + 1 = 109 + 1 = 10

GN
Answered by Grace N. Maths tutor

4883 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Divide 711 in the ratio 4:5


Factorise x^2 + 2x – 15


ABCD is a square of side 10 cm. Each side of the square is a tangent to the circle. Work out the total area of the shaded regions in terms of . Give your answer in its simplest form.


How do I find the nth term of a sequence?


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:

© 2025 by IXL Learning