Simultaneous Equations Flashcards
1
Q
The sum of two numbers is 104 and the difference between them is 58- what are the two numbers?
A
81 and 23
2
Q
5x+y=31
2x+y=13
A
x=6
y=1
3
Q
2x+4y=36
4x+y=23
A
x=4
y=7
4
Q
2a+5b=52
3a+2b=34
A
a=6
b=8
5
Q
9x+8y=1
2x+3y=-1
A
x=1
y=-1
6
Q
7apples and 3bananas cost 126
6apples and 5bananas cost 142
A
a=12
b=14
7
Q
5apples and 2bananas cost 19
6apples and 5bananas cost 41
A
a=1
b=7
8
Q
3apples and 5bananas cost 34
7apples and 8bananas cost 50
A
a=-2
b=8
9
Q
4apples and 3bananas cost -9
3apples and 8bananas cost -1
A
a=-3
b=1
10
Q
same signs
different signs
A
=subtract
=add
11
Q
7j+7k=77
5j-7k=-5
A
j=6
k=7
12
Q
7m+n=22
21-2n=26
A
m=2
n=8
13
Q
3p+6q=33
7p+5q=32
A
q=5
p=1
14
Q
3p+3q=15
6p-7p=-9
A
p=2
q=3
15
Q
4x+5y=33
7x-6y=43
A
x=7
y=1
