Monday

January 26, 2015

January 26, 2015

Posted by **Anonymous** on Sunday, October 2, 2011 at 6:26pm.

3x + 7x =120

It will help if you explain it too. Thanks!

- PRE-ALGEBRA -
**Ms. Sue**, Sunday, October 2, 2011 at 6:27pm3x + 7x =120

10x = 120

This means that 10 time some number is 120.

Divide both sides of the equation by 10.

x = 120/10

x = ?

- PRE-ALGEBRA -
**bobpursley**, Sunday, October 2, 2011 at 6:28pmcombine like terms

10x=120

divide both sides by 10

x= 12

**Answer this Question**

**Related Questions**

Pre-algebra - Hi need help answering this question? In your own words, define ...

Algebra - Please help! I need to factorise and solve this equation, x^2 +x -30 =...

Pre-Calculus - Solve the equation 2x + 5y - 3z = -1. Write the general solution ...

algebra - Define the term equation and then explain what it means to solve an ...

Algebra - Hi, I have had to factorise the equation x^2 + x - 30 = 0, which I ...

Pre-Algebra - If the perimeter of a rectangle is 38 ft and the width is 9 ft, ...

Math (Trigenometry) - Find two positve real numbers whose product is a maximum ...

pre algebra - How do I solve this equation the find te slope of the line? Please...

pre algebra - solve the equation 78= -2(m+3)+ m

algebra - How do you solve the expotential notation equation 120-6^2/4x8?