Solve for x and y (113y) ( 1 1 3 y ) (x1) ( x 1 ) = (41)

Assessment: JAMB UTME - Mathematics - 1994 Subject: General Mathematics

Question 1 Report

Solve for x and y $(\begin{matrix} 1 & 1 \\ 3 & y \end{matrix})$ $(\begin{matrix} x \\ 1 \end{matrix})$ = $(\begin{matrix} 4 \\ 1 \end{matrix})$

x = 3, y = 8

x = 3, y = -8

x = -8, y = 3

x = 8, y = -3

Answer Details

$(\begin{matrix} 1 & 1 \\ 3 & y \end{matrix})$ $(\begin{matrix} x \\ 1 \end{matrix})$ = $(\begin{matrix} 4 \\ 1 \end{matrix})$ = x + 1 = 4
x = 4 - 1
= 3
3x + y =1
3(3) = y = 1
= 9 + y = 1
y = 1 - 9
= -8

Read lesson note on Solution Of Linear Equations (WAEC)

Solution Of Linear Equations

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