Seudónimo Seudónimo

09-02-2017
Mathematics

contestada

What is 2x + 5 = 15 - (-49) x 5

Respuesta :

christinann062 christinann062

09-02-2017

2x + 5 = 15 - (-49) x 5
combine like terms

2x + 5 = 320
subtract 5 from each side

2x = 315
divide by 2 on each side

x = 157.5

Answer Link

hopewelch97 hopewelch97

09-02-2017

So, you do -49 * 5 first because multiplication is before addition, which is -245.
15 - (-245) turns into addition, so the right side of the equation is 260.

Move the 5 over. 260-5 = 255

2x = 255, so x =255/2 or 127.5

Answer Link

Otras preguntas

Write an algebraic expression for 15 decreased by twice a number

Write an algebraic expression for the product of 33 and j

What area did Jacques Cartier explore?

Describe three main features inside a prokaryotic cell.

Which of the following best describes the 1920s? (A) Period of surface prosperity with underlying economic problems (B) Period of international and national pro

At a cost of $2.50 per square yard, what would be the price of carpeting a rectangular ﬂoor, 18 ft x 24 ft?

The border states that remained in the Union were (A) Ohio, Indiana, and Illinois (B) Tennessee (C) Kentucky and Missouri (D) Delaware, Maryland, Kentucky and M

Write an algebraic expression for the product of 33 and j

A sound wave travels at 330 m/sec and has a wavelength of 2 meters. Calculate its frequency and period.

How can sudden events affect earth?