hdhdheheksns hdhdheheksns

03-02-2017
Mathematics

contestada

Simplify the equation -3(5-7x)

Respuesta :

amayacbeau amayacbeau

03-02-2017

The answer is 21x - 15.

To solve, distribute the -3 to the numbers in the parentheses.

-3 (5 - 7x)
-15 + 21x (Multiplying two negatives makes a positive)
21x - 15 (Commutative Property allows you to switch the numbers around)

Answer Link

Otras preguntas

In the figure, mZ1 =(x-6) and m 2 2 = (5x). (a) Write an equation to find x. 1 Equation: 1 2

I am trying to understand how to setup this equation!

a radioactive substance of decaying so that the number of grams present after T days is given by the following function:A(t) = 450e ^ -0.04 t question 1: How ma

Which is NOT true?a) 9+4=17-4b)8+7=14+3c)11=19-8d)5+8=20-7

In the Itty Bitty High School, there are 85 students. There are 27 students whotake French, 51 who take Geometry and 38 who take History. There are 10 thattake

Question 1 1) Three friends split the cost of a pizza and a salad. The pizza costs $15 and the salad costs $6. 1) Which expression can you use to find how much

Let f(x) = x^2 + 8x.a) Evaluate f(-3). b) Solve f(x)= -16.

Regan counted the number of problems on each of her tests. Number of problems Number of tests 21 2 42 2 52 3 57 1 82 2 X is the number of problems that a random

Given the rational expression 12x²-108/36x-108, which of the following represents its simplest formA) 12(x+3)/36B) x²-9/3(x-3)C) x+3/3D) x/3

Consider a father pushing a child on a playground merry-go-round. The system has a moment of inertia of 84.4 kg • m2. The father exerts a force on themerry-go-r