Solve −4(x + 10) − 6 = −3(x − 2). a −40 b −46 c −52 d 52

Mathematics

2 answers:

12345 [234]4 years ago

6 0

The answer is C. -52.

Nata [24]4 years ago

6 0

X = -52 so.....C and I'm positive this time.

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I need help please my home work not to sure how to do it

Artyom0805 [142]

1. x+5y=8
2x- 5y=1 What you do is find the number/variable that are the same( here is is the +5y and -5y. You want them to be opposites(-,+) so that they cancel each other out. if they are not opposites, then multiply one equation by a negative sign to change it. Cross out the 5y's. Now you can combine like terms-x+2x=3x, and 8+1=9, so now your equation will look like this:
3x=9
x=9/3
x=3
now take x=3 and plug it into the first equation to solve for y. x+5y=8, so 3+5y=8
5y=8-3
5y=5
y=5/5
y=1
(3,1) are your answers.
now do the same with the other problems.

4 0

3 years ago

Read 2 more answers

Simplify the problem thank you

NikAS [45]

Given the expression:

$\displaystyle \large{ \sqrt[3]{ - 125} }$

Definition:

$\displaystyle \large{ y = \begin{cases} \pm \sqrt[n]{x} \longrightarrow n = (2,4,6,8,...) \: \: (x \geqslant 0) \\ \sqrt[n]{x}\longrightarrow n = (1,3,5,7,...) \: \: (x \in \R) \end{cases}}$