Question 1

u = v$^2$,
u = 6v - 8

Accepted Answer

v = 4 and u = 16,
v = 2 and u = 4

Answer

v = 2 and u = 8,
v = 2 and u = 4

Answer

v = 4 and u = 4,
v = 2 and u = 16

Answer

v =2 and u = 16,
v = 4 and u = 4

Question 2

n = h$^2$
n = 7h - 12

Accepted Answer

h = 4 and n = 16
h = 3 and n = 9

Answer

h = 9 and n = 1
h = 3 and n = 16

Answer

h = -2 and n = -1
h = 4 and n = 7

Answer

h = 16 and n = 4
h = 3 and n = 9

Question 3

r = x$^2$,
r = x + 6

Accepted Answer

x = 3 and r = 9
x = -2 and r = 4

Answer

x = -2 and r = 9
x = 3 and r = 4

Answer

x = 2 and r = 5
x = -1 and r = 7

Answer

x = 4 and r = 7
x = -7 and r = 4

Question 4

$xy = 2$,
$x = y + 1$

Accepted Answer

$x = 2, y = 1
x = -1, y = -2$

Answer

$x = 3$ when  $ y = 3$  and   
$x = -5$ when $ y = 5$

Answer

$x = 1$ when  $ y = 1$  and   
$x = -2$ when $ y = 0$

Answer

$x = 3$ when  $ y = 4$  and   
$x = -2$ when $ y = 5$

Question 5

$x(y-1)=3$

$y=x-1$

Accepted Answer

$x = 3$ when  $ y = 2$  and   
$x = -1$ when $ y = -2$

Answer

$x = 2$ when  $ y = 4$  and   
$x = -2$ when $ y = -1$

Answer

$x = 4$ when  $ y = 1$  and   
$x = -4$ when $ y = 1$

Answer

$x = 5$ when  $ y = 2$  and   
$x = -1$ when $ y = 3$

Question 6

$x^2 + y^2 = 5$  
$y = x+3$

Accepted Answer

$x = -2$ when  $ y = 1$  and   
$x = -1$ when $ y = 2$

Answer

$x = 3$ when  $ y = 4$  and   
$x = -2$ when $ y = 5$

Answer

$x = 2$ when  $ y = 1$  and   
$x = -2$ when $ y = 1$

Answer

$x = 7$ when  $ y = 1$  and   
$x = -2$ when $ y = -7$

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