If 217x + 131y = 913 and 131x + 217y = 827, then solve the equations for the values of x and y.... | SA 3m | Maths | SuperPadhai

Linear Equations > Question

SA3 marksYear: 2023MediumCBSE Class 10

linear-equationssimultaneous-equationselimination

Question

If

217 x + 131 y = 913

and

131 x + 217 y = 827

, then solve the equations for the values of

x

and

y

.

Solution

1

Adding:

348 (x + y) = 1740 \Rightarrow x + y = 5

+1 mark

2

Subtracting:

86 (x - y) = 86 \Rightarrow x - y = 1

+1 mark

3

\Rightarrow x = 3, y = 2

+1 mark

Practice this question interactively with step-by-step AI feedback

Sign up for SuperPadhai