Question

when we added 5 to a number we get 45.write it as algebra expression​

Answer 1

Answer:

The sum: +

Two times a number: 2x

Let x be the unknown number that 2 is being multiplied by

The sum of 2 times a number and 5:

2x+5=45

Perform the opposite operation on the left side of the equation by subtracting 5 on both sides of the equation

2x=40

Isolate x by performing the opposite operation, which is division of 2, on both sides of the equation

x=20

The unknown number is 20

Answer 2

Answer:

The sum +

Two times a no. 2x

let x be unknown no. that 2is being (x)

2x+5=45

2x=40

unknown number =20 Answer

hope this helps you

Step-by-step explanation:

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