Inverse Operation
n/-4= -2
8
6(𝓧+1)=-54
-10
When Nicola went to the state car museum, she saw cars and three motorbikes. In total she saw 134 wheels in the museum. How many cars did Nicola see?
32
When a number is multiplied by 5, the result is 30.
5x=30
10a=7
7/10
2(-𝓧 +1)=-1
1 1/2
I am thinking of a number. When the number is halved and then 8 is added, the result is 13. What is the number?
10
When a number is divided by 4, and then 6 is added, the result is 8.
x/4+6=8
16+m=12
-4
(𝓧 -3)/4=5
23
A school band has 15 musicians and some singers. The members of the band are split into 6 groups of 4 students. How many singers are in the band?
9
Paul has x coins, then his father gives him 12 more. Paul now has 27 coins.
x+12=27
Simplify: 3𝓧 /2 x 2
3𝓧
1- 3𝓧/2=5
-3
I am thinking of a number. When the number is tripled and then 4 is taken away, the result is 11. What is the number?
5
Darren is x years old. His daughter Fiona, who is one third his age, is 12 years old.
1/3x=12
9u=5
5/9
-5(2𝓧 -4)/3=30
-7
Each day a salesman is paid £180 plus one tenth of the value of the sales he makes for the day. On one day the salesman is paid £300. What value of sales did he make that day?
£1200
A plant was initially x cm high. In a week it doubled its height, and the next week it grew another 10 cm. It was then 31 cm high.
2x+10=31