3 years ago

How to solve a system of equations by substitution

1 answer:

4 0

First, substitute y in 3x-2y=9 for what it says y equals (2x-7). You now have: 3x-2(2x-7)=9. Breakdown:
3x-2(2x-7)=9
3x-4x+14=9
-1x=-5
x=5
next solve for y
y=2x-7
y=2(5)-7
y=10-7
y=3
So Now We Have x=5, and y=3.
Hope That Helped =D

You might be interested in

Plss help i need help i beg you!!!!

Viktor [21]

Answer:

Merry Berry

Why:

Put simply due to math you can see that the 6 cups is more than half of the water added so you have a fruitier drink in comparison to the other.

Hope this helped

3 0

3 years ago

Solve the expression

babunello [35]

Answer:

1.49011612e18

Step-by-step explanation:

5^20=9.53674316e13

5^6=15625

9.53674316e13*15625=1.49011612e18

5 0

2 years ago

Yuri has 9 teaspoons of sugar. The ratio of teaspoons to tablespoons is 3:1. How many tablespoons of sugar does Yuri have?

inna [77]

gggggggggggggggggggggggggggggggggggggggggggggggg

5 0

2 years ago

O que é uma fração equivalente?

Lerok [7]

Answer:

In math, equivalent fractions can be defined as fractions with different numerators and denominators that represent the same value or proportion of the whole.

Step-by-step explanation:

8 0

3 years ago

PLEASE IM BEGGING YOU HELPPPP does the equation go up to down? y=8x^2+7x-2

mart [117]

Answer:

Opens upward

Step-by-step explanation:

Since the coefficient of $x^{2}$ is a positive number +8, then it is a parabola that opens upward

5 0

2 years ago

Read 2 more answers