206k views
0 votes
Can you do step by step to the problem 7(x+5)=3(x-8)

User Aniqa
by
8.0k points

2 Answers

2 votes

Starting with the equation:


7(x+5)=3(x-8)

Use the distributive property to expand both parenthesis:


7\cdot x+7\cdot5=3\cdot x-3\cdot8

Solve the products 7*5 and 3*8:


7x+35=3x-24

Substract 35 from both sides of the equation:


7x+35-35=3x-24-35

Solve the additions 35-35 and -24-35:


7x=3x-59

Substract 3x from both sides of the equation:


7x-3x=3x-59-3x

Add like terms in both sides of the equation:


4x=-59

Divide both sides of the equation by 4:


(4x)/(4)=(-59)/(4)

Simplify the fraction 4/4:


x=-(59)/(4)

Check this answer by plugging in the value of x in the original equation:


undefined

User Narine
by
8.0k points
4 votes

7(x+5)=3(x-8)

We move all the characters to the left:

7(x+5)-(3(x-8))=0

Multiply

7x-(3(x-8))+35=0

Calculations in parentheses: -(3(x-8)), so:

3(x-8)

Multiply

3x-24

Back to the equation:

-(3x-24)

We get rid of the parentheses.

7x-3x+24+35=0

We add all the numbers and all the variables.

4x+59=0

We move all terms containing x to the left hand side, all other terms to the right hand sides.

4x=-59

x=-59/4

User Palme
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories