Question

-4(2x-9)+5(3x+2) can you please show me how to do this?

Answer 1

open the brackets.....
-8x+36+15x+10=0
7x+46=0
x=-46/7

Answer 2

can you please show me how to simplify it?

Answer 3

Yea.... sure...... Just as above I have solved it....
Apply PEMDAS rule because it involves paranthesis....
First open the brackets..... then add and subtract..... What's ur confusion ?
Can U do this now ?

Answer 4

I just don't know how you got all that... like i seen how you got -8x and 36 and 15x but how did u get 10? I am so confused!! Sorry.

Answer 5

then 7x where did that come from?

Answer 6

46 i know to added 36+10 to get 46.

Answer 7

oh...okay...... Just multiply -4 with (2x-9) and 5 with (3x+2)..... now U dont know from where 10 came..... multiply 5 with 3x and 5 with 2 U will get 15x+10.... Rite ?
and the first bracket... -4 *2x and -4*-9......
after multiplying U will get .....-8x+36+15x+10=0
now just add 'x' terms...... U know 15x-8x=7x.... U got it ?
And 36+10=46....... so to solve for x.... take 7 to the denominator of 46........ answer......

Answer 8

oh okay. I think i got it. sorry and thanks.
I have another one can you help me with it?

Answer 9

no problem....
Mm....
okay Just let me know whats that ...... :)

Answer 10

5[2-3(6x-1)] this is exactly how it is in my book.

Answer 11

First of all ,we have to solve the parenthesis.... Okay.......
So,,, Just keep everything as it is written..... and solve parenthesis....
=5[2-18x+3]
=5[-18x+5] inside the bracket it is DMAS... SImple it is.....
=-90x+25..... Now If on the other side it is equal to zero..... then u can find x.....U have any problem ?

Answer 12

5*2-3*6x-1 is this what i am suppose to do first and then solve

Answer 13

okay so how am i suppose to know when to do leave the parentheses and solve first or leave them like in this problem i needed to keep my parentheses?

Answer 14

@edmondss390 U just have to solve for parenthesis first.... See above I have multiplied and opened the parenthesis..... Then I do add and subtract in the square brackets and then in the end, multiply 5 with the remaining

Answer 15

ok. thanks so much. I am sorry if i frustrated you. hope you have a wonderful day. thanks so much! :)

Answer 16

whatever wil happen, U just have to solve first the parenthesis, then braces and then square brackets......... and in each braket use DMAS rule.....its not that complicated, I am just explaining to much extent.....

Answer 17

no.,never..... I like mathematics... :)
hehe.... thanks U.....