Answer:
73 and 15
Step-by-step explanation:
I made two variables for this:
x = larger number
y = smaller number
Write an equation for "the sum of two number is 88" and you get:
x + y = 88
Write an equation for "four times the smaller number is subtracted from the larger number" and you get:
x - 4y = 13
I do not want an equation with both x and y in it, so I will rewrite the first one and use substitution in the second one:
x + y = 88 -- move the x to the other side
y = 88 - x
x - 4y = 13 -- substitute for y
x - 4(88 - x) = 13 -- multiply by 4
x - 352 + 4x = 13 -- move -352 to the other side, combine x's
5x = 365 -- divide by 5
x = 73
Now that I know x is 73, I go back to my first equation (x + y = 88) and I get:
73 + y = 88 -- subtract 73 from both sides
y = 88 - 73
y = 15
Answer:
Distribute
8
−
4
=
2
(
4
−
4
)
8x-4={\color{#c92786}{2(4x-4)}}
8x−4=2(4x−4)
8
−
4
=
8
−
8
8x-4={\color{#c92786}{8x-8}}
8x−4=8x−8
2
Add
4
4
4
to both sides of the equation
8
−
4
=
8
−
8
8x-4=8x-8
8x−4=8x−8
8
−
4
+
4
=
8
−
8
+
4
8x-4+{\color{#c92786}{4}}=8x-8+{\color{#c92786}{4}}
8x−4+4=8x−8+4
3
Simplify
Add the numbers
Add the numbers
8
=
8
−
4
8x=8x-4
8x=8x−4
2 more steps
Result
0
=
−
4
0=-4
0=−4
The input is a contradiction: it has no solutions
Step-by-step explanation:
id assume its -5 as the rate of change seems to be zero
Answer:
the answer is 5
Step-by-step explanation:
Multiply by 2 which is 8x-8y=-80then subtract from 8x-8y=80 you will get 0=160 so that it is no solution. Have a nice day.
