You can solve it by replacing the Y in the 2nd equation with the solved Y in the first.
4x + 2(3x-15)= 22
that should give you...
4x + 6x - 30 = 22
then combine like terms...
10x - 30 = 22
now we need to get X alone so add 30 to each side....
10x = 52
now divide both sides by 10..
X = 52\10
both are divisible by 2...
X = 26\5
you should be done unless you need Y as well then go back to the first and plug in what you found for X...
Y = 3(26÷5)- 15
and that should give you Y.
a 2nd method you can make your own answer by making x = 0 ..
Y= 3(0) -15
Y= -15
now put that in the 2nd for Y...
4x+ 2(-15) = 22...
4x-30= 22
add 30 to both sides..
4x = 52
divide by 4....
X = 13
now take this to the first for x...
Y= 3(15) - 15
Y = 30
you can check your work by plugging in the two on top and see if the final is the same..
30 = 3(15) - 15
the 2nd way is faster though of course..
anyway X= 13 Y= 30
Ion know sorry sorry dehevevshhsbdxgeusvdvegeg
Slope intercept form is y = -2x + 14
Step-by-step explanation:
- Step 1: The original equation is 4x + 2y = 14.
- Step 2: Rearrange so that x is first in the right hand side of the equation.
⇒ 2y = - 4x + 14
- Step 3: Subtract 4x from both sides of the equation.
⇒ 2y = 14 - 4x
- Step 4: Divide both sides of the equation by 2 so that coefficient of y is 1.
⇒ y = - 2x + 7
This is the slope intercept form y = mx + b
To solve problem #1 follow the steps below...
Step 1:Think back to PEMDAS
P=Parentheses
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction
(Think of M,D as brothers and whichever once comes first in the problem you do.This rule also applies to A,S)
Step 2: Look back to your problem
(6 divided by 2 plus 1) plus 10x2
Step 3: Start with the parentheses
6 divided by 2 plus 1
Step 4: Do the division first
6 divided by 2=3
Step 5:Now the addition
3 plus 1=4
Step 6: Rewrite the problem
4 plus 10x2
Step 7: Do the multiplication
10x2=20
Step 8: Rewrite your problem again
4 plus 20
Step 9: Solve
4 plus 20=24
Step 10: Look back at your work and see what order your operations were done in
.Division
.Addition
.Multiplication
.Addition
Step 11: Compare your order to the choices
Answer: b
I hope this helps and if any false information was given I apologize in advance.
We first know that 66 as a decimal is well 66. Now, 2/3 as a decimal would be 66.666666 and so on on. Therefore, 66 and 2/3 as a decimal is 66.66666 and so on.
