Solving equations

Select all the equations that are equal to 9s=45

• 9s - 5 = 45 + 4

• 9s + 2 = 45 + 9

• 9s x 7 = 45 x 7

• 9s - 22 = 45 - 22

Answer explanation

The answers are b and d, we got that by using the properties of equality. Which means whatever you do on the left side you do on the right side to keep it balanced.

Is r = 12 a solution to the equation r + 4 = 24

• Yes

• No

Answer explanation

The answer is No,because 4+12=16 not 24. To solve this you should do this,4+r-4=24-4.the answer is,r=20.

What property of equality is this, 4m = 60 4m +2 = 60+ 2

• Addition

• Multiplication

• Subtraction

• Division

Answer explanation

Its addition because they used addition to keep it balanced.

What property of equality is this,9y - 4 = 33

9y-4x6=33x6

• Addition

• Subtraction

• Multiplication

• Division

Answer explanation

Its multiplication because they used multiplication to keep it balanced

What property of equality is this, 12f = 29

12f ➗7=29➗7

• Addition

• Subtraction

• Mulltiplication

• Division

Answer explanation

Its division because they used division to keep it balanced.

What property of equality is this,5t =85

5t-67=85-67

• Addition

• Subtration

• Multiplication

• division

Answer explanation

Its Subtraction because they used Subtraction to keep it balanced.

What is 5x=40

(a)  

Answer explanation

We got that because 40➗5=8.

What is the value of d, 4d = 24?

(a)  

Answer explanation

We got that because 24➗4=6

What is the value of m,9m=81?

(a)  

Answer explanation

We got that because 81➗9=9.

Which equation has x=4 as a solution?

• 16+x=12

• 4+x = 6

• 7+x=11

• 10+x = 15

Answer explanation

We got this because 11-7 = 4 and the rest don't.