Answer:
x = -3, y = -4
(-3, -4)
Step-by-step explanation:
solve each equation for y (the first equation is already solved for y, so just do the second equation)
-x -y =7
<u>+x +x</u>
-y = x + 7 eliminate the negative by switching all signs
y = -x - 7
now that both equations equal y, you can set them equal to each other:
-x - 7 = 3x + 5
solve for x
-x - 7 = 3x + 5 move the variable to one side of the equation
<u>+x +x </u>
-7 = 4x + 5 move the constant to the other side of the equation
<u>-5 -5</u>
-12 = 4x single out x by dividing the whole thing by 4
<u>÷4 ÷4</u>
-3 = x
now substitute -3 for x in one of the original equations (it doesn't matter which equation)
y = 3(-3) +5 solve
y = -9 +5
y = -4
have a wonderful day! :)
T-Shirts=$15
Gift Card=100
So you can solve it this way:
it says that the gc had $100, and at the end of the day it only has 10.
So it means she spend $90 in T-Shirts.
And each T-Shirt is $15.
15x=90
15(60)=90
She bought 6 T-Shirts
Answer:
45
Step-by-step explanation:
The little square at the bottom of the triangle is a 90 degree angle so add 90+45=135 and if the whole triangle equals 180 so you would do 180-135=45
Answer:
y-x
Step-by-step explanation:
I assumed you meant that you wanted me to rewrite the expression without the absolute value signs. Since the absolute value of a number will be the same whichever way you place the numbers, you can rewrite |x-y| as y-x, as x is less than y.
17 because 100 - 55 = 45 14/45%= 31 31 times 55%= 17
