Answer:
Step-by-step explanation:
5x + 7x - 1/2x + 1/4 = 6
move x to one side move numbers to the other side
5x + 7x - 1/2 x = 6 - 1/4
add x and numbers
23/2x = 23/4
divide both side by 23/2
x = (23/4)/(23/2)
= 1/2
plug it in to check the answer
5/2 + 7/2 - 1/4 + 1/4 = 6
12/2 = 6
Answer:
5 and 5
Step-by-step explanation:
Please mark brainliest
steps)7-2n=3
then you move the constant to tge right hand side and change its sign
-2n=3-7
then
calculate the difference
-2n=3-7
-2n= -4
Divide both sides
n=2
Answer:
9/20
Step-by-step explanation:
First, turn the fractions into decimals then divide them and you get .45.
Find .45 in a fraction and it's 9/20. That's its simplest form.
Answer:
x = 35
Step-by-step explanation:
angles in a triangle add up to 180.
x + 11 + 3x + 1 + x - 7 = 180
combine like terms
5x + 5 = 180
subtract 5 from both sides of the equation
5x + 5 - 5 = 180 - 5
5x = 180 - 5
5x = 175
divide both sides of the equation by 5
5x/5 = 175/5
x = 175/5
x = 35
