X-y=11
2x+y=19
add them
x-y=11
<u>2x+y=19 +</u>
3x+0y=30
3x=30
divide 3
x=10
sub baack
x-y=11
10-y=11
minus 10
-y=1
times -1
y=-1
(x,y)
(10,-1)
<span>Igual que el último.
Si es "$ 2,000 por 100 sobres, dividiremos 2,000 / 100 y obtendremos 20, luego multiplicaremos 20 por 75 y obtendremos" $ 1500 ".
Esta es la ecuación
$ 2,000 / 100 = 20 x 75 = $ 1,500
Espero que esto ayude :-)</span>
2^x-2=16
+2 +2
——————
2^x=18
(Log)(2))=log (18)
X=log(18)
————-
Log(2)
X=4.169925
Answer: It depends on which variable you're solving for.
Step-by-step explanation:
Solving for b: b=7/8mx + -1/8xy
Solving for m: m=xy+8b
______
7x
Solving for x: x=-8b
___
-7m+y
Solving for y: y=7mx-8b
______
x
just add the whole numbers and add negative infront -16+-27= -43
