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2 votes
Solev the following equation

a, 2m+8=15

b 10x-3=45

form equation and solve them
a}Ashley thinks of a number if i double my number and add 6 the anser is 40

User Ybert
by
8.5k points

2 Answers

0 votes

Answer:

a) 7/2 or 3.5

b) 4.8

form equation and solve them

a}n = 17

Explanation:

a) 2m + 8 = 15

Subtract 8 from both sides: 2m + 8 - 8 = 15 - 8

Simplify: 2m = 7

Divide both sides by 2: (2m)/2 = 7/2

Simplify: m = 7/2 or 3.5

b) 10x - 3 = 45

Add 3 to both sides: 10x - 3 + 3 = 45 + 3

Simplify: 10x = 48

Divide both sides by 10: (10x)/10 = 48/10

Simplify: x = 4.8

To form and solve an equation for Ashley’s problem, we need to translate the words into mathematical expressions. Here are the steps and solution:

a) Ashley thinks of a number if i double my number and add 6 the answer is 40

Let n be Ashley’s number.

If we double the number, we get 2n.

If we add 6 to the doubled number, we get 2n + 6.

The answer is equal to 40, so we can write an equation: 2n + 6 = 40

To solve for n, we need to isolate it on one side of the equation by using inverse operations.

Subtract 6 from both sides: 2n + 6 - 6 = 40 - 6

Simplify: 2n = 34

Divide both sides by 2: (2n)/2 = 34/2

Simplify: n = 17

User Arthur Maltson
by
8.6k points
1 vote

Answer:

2m=7. m=7/2. 10x =48. x = 4.8

Explanation:

2m

Solev the following equation a, 2m+8=15 b 10x-3=45 form equation and solve them a-example-1
Solev the following equation a, 2m+8=15 b 10x-3=45 form equation and solve them a-example-2
User Ashot Khanamiryan
by
7.8k points

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