Equations and Expression Flashcards
Work out x
4x-9=41
x=8
Work out a, if b=3
2ab=306
a=51
Work out z
2z+8=5z-4
z=4
Simplify the expression
-6(2a-5)+7a+92
-5a+122
Simplify this expression
7k-69+412-56k+10k+35-209
-39z+169
Work out z
4(z+1.5)=50
z=11
Work out d
6d²-7=89
d=4 or -4
Work out j
j²=j+12
j=4
Work out y
8y-12=3(y+1)
y=3
Is this an expression or equation?
4t+f=23
Equation
Is this an expression or equation?
856<3g-1057
Equation
Is this an expression or equation?
5r(r+f)x3r+6
Expression
Work out m
8m²/2=18²
m=9 or -9
Work out t
13(t+(41-72)=663
t=82
Work out p
256-6p=108
p=25
Work out g
465+7g-391=123
g=7
Simplify this equation
-d(d²+8)-9(3+6d)
-y³-62y-27
Work out r
6r³=48
r=2
Work out s
(s+9)²=256
7 or -25
Work out x
(x-1)²=100
-9 or 11
Patrick think of a number.
She finds the square root and then adds 10.
Her answer is 35.
What number is she thinking of?
625
Jack thinks of a number.
He divides by 8 and then multiply by 5.
His answer was 45.
What is the number is she thinking of?
72
Joanna thinks of a number.
He multiplies it by -7 and then subtracts 5.
His answer is 51
What is the number he thinking of?
-8
Matilda and Oscar think of the same number.
Matilda divides her number by 7 and then adds 3.
Her answer is 6.
Oscar subtracts 9 then squares.
His final answer is z
Work out Oscar final answer,z.
z=144
Elena and George think of the same number.
Elena multiples her number by 2 and then adds 4.
Her answer is 18.
Oscar cubes then subtracts 19.
After that, he finds the square root.
His final answer is y.
Work out George final answer,y.
y=18
