i need help on math
In this equation, we are trying to find the variable x The first step is to isolate the variable on one side so what you would do is inverse operations
First you would subtract 4 on both sides as what you do on one side, you do on the other
Doing so, 4 and 4 cancel out and subtracting from a negative is adding to it while the sign stays the same |dw:1638670158976:dw|
SO far, do you understand?
yes i do and tysm
welc Next as you can see, x still isn't by itself, so we need to remove the number 3 3x is the operation of multiplication, meaning you would divide 3 on both sides 3 and 3 cancel out and -15 divided by 3 equals -5 as the operation of dividing or multiplying a negative leaves the sign the same |dw:1638670345963:dw|
ok, thx again for helping me, is there anything else for that
And if you'd like to check your work, you can plug in -5 to where x is |dw:1638670484494:dw| When you add a positive to a negative, you are basically adding it but keeping the sign the same if the number which you are adding isnt higher
|dw:1638670559046:dw| sorry i meant -11*
its okay, if may i ask is this right?
Ah ic, create another post for the image you just posted
this one
ok thx i just wanted to make sure if i was right
You are right with the first one as the white rectangles equals x and there are 6 of them
Correct with the second one as the black rectangles equal -x and there are 4 of them
Correct with the 3rd one as the white rectangle equals x and there is 1 of them(you dont have to put 1 with the x as the variable x without an exponent or a number higher than 1 equals to 1)and there are 3 black boxes which equal to -3
COrrect with the 4th one as the wwhite rectangles equal to x and there are 5 of them with 1 black box which is negative
You are WRONG with the 5th one because there are no rectangles to represent x It would just be -11
Wrong with the 6th one because the boxes represent whole numbers, so it would just be 9 there is no rectangle to represent the variable x
7th one is correct(you dont have to put 1 with the x as the variable x without an exponent or a number higher than 1 equals to 1) It is -1x + 7
Last one is 4x + 5 because there are 4 white rectangles and 5 white boxes
The legend is telling you that the white rectangles represent positive x, the black rectangles represent negative x, the white boxes represent a positive whole number, and the black boxes represent a negative whole number
When you write 1x, it just means that any value multiplied by 1 is always equal to itself
@jassi
im very sorry for the late response, and yes i will change the answer and thx sm for the help
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