Y=x-3
y+3x=1 solve by substitution

x=1, y=-2

Step-by-step explanation:

According to the substitution property, if x = y, then x can be substituted for y in any equation, and y can be substituted for x in any equation.

We are already given the values:

y=x-3

y+3x=1

We can substitute y into the equation.

As so-

Combine common terms:

Now solve for x. To solve for a variable, we must isolate it:

Add 3 to both sides:

The last thing, 4 is being multiplied to x, so we must divide it to both sides to isolate the variable.

Now we can just substitute the x value into the y equation:

It is always better to check our answers, we can substitute our x and y into the equation:

We are right! :)) Hope it helps!

x=1, y=-2

(1,-2)

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42