dawsonscripture dawsonscripture

02-10-2020
Mathematics

contestada

What does a equal -5(6a+21)=-15

Respuesta :

BunBoiReborn BunBoiReborn

02-10-2020

Step 1 remove paranthesis
(-30a-105)=-15

Step 2: Move constant to RHS (take not negative sign is removed if sides are changed and vice versa)

-30a=-15+105
-30a=90

Step 3: Simplify
-a=3

Step 4: remove negative sign from variable
a=3

Answer Link

Otras preguntas

Express the polynomial 6e^2+3e^3+1 in standard form and then classify it.

Solve: negative 1 over 2 x + 3 = –x + 7

A rock containing valuable minerals that can be mined is called A. An inorganic compound B. An igneous rock C. An ore D. An organic compound

How many atoms of each element (Carbon, Hydrogen and Oxygen) are in a sample of 1.202 grams of Sucrose (C12H22O11)? There are 0.042 moles Carbon, 0.077 moles Hy

Please help i need today now please

1.what happens in the nucleus of an atom when an alpha particle is emitted? 2. what happens in the nucleus of an atom when a beta particle is emitted?

Can someone make sure the first 3 questions are correct and help me on the 4th one?

7. Which of the following sentences needs a semicolon to be correct? A. If you ask me Jerry is an incredible tennis whiz. B. Playing tennis is Luc

The minimum and maximum temperature on a cold day in Lollypop Town can be modeled by the equation below: 2|x − 6| + 14 = 38 What are the minimum and maximum tem

Find the interquartile range for the Dara set :10,3,8,6,9,12,13 A.12 B.8 C.6 D 7