Group 'em together
a
b
−
a
+
1
−
b
a
b
−
a
=
a
(
b
−
1
)
Notice that there will be a 1 as without it it'll simply be ab
1
−
b
=
1
(
1
−
b
)
Notice that it doesn't match with the upper one... so we'll change the signs
1
(
1
−
b
)
=
−
1
(
b−
1
)
(try to multiply them now!!
Jot them down in one expression
a
(
b
−
1
)
−
1
(
b
−
1
)
You get!!!!!!
(
a
−
1
)
(
b
−
1
)
2x - y = -10
y = 4x
2x - 4x = -10
-2x = -10
x = 5
y = 4x
y = 4* 5
y = 20
Answer : (x,y) = (5,20)
It’s 4.2 because it’s and given and you add then yeah you get the point
Answer:
48
Step-by-step explanation:
304 - 256 equals 48
