Solve the system by substitution 8y+3=x 9x-5y=-40

1 answer:

7 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:

(-5,-1)

Equation Form:

X = -5 and Y = -1

Hope this helps :)

Have a great day!

You might be interested in

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a>1

Pavel [41]

Answer:

4(5x + 6)

Step-by-step explanation:

To start, let's expand things out, as we cannot learn anything from this form. We get 30x + 20 - 10x + 4, or 20x + 24. To find the GCD (Greatest Common Divisor), we take the terms and try to find the number (or term) that divides them. It must be a constant, because of the 24, and 4 goes into 20 and 24. So, our final answer is 4(5x + 6).

5 0

3 years ago

Read 2 more answers

A metallurgist has one alloy containing 34% copper another containing 48% copper. How many pounds of each alloy must he use to m

Zielflug [23.3K]

Answer:

<h2>36.14 pounds of 34% copper alloy and 9.86 pounds of 48% copper alloy</h2>

Step-by-step explanation:

First alloy contains 34% copper and the second alloy contains 48% alloy.

We wish to make 46 pounds of a third alloy containing 37% copper.

Let the weight of first alloy used be $x$ in pounds and the weight of second alloy used be $y$ in pounds.