ashleyyyyysengggg ashleyyyyysengggg
  • 11-11-2019
  • Mathematics
contestada

Select the best possible first step to solving the system by first eliminating the x variable.
4x + 9y = 21
3x - 8y = 1

Respuesta :

ZimmityZip
ZimmityZip ZimmityZip
  • 11-11-2019

Answer:

x = 5.25 + -2.25y

Step-by-step explanation:

4x + 9y = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9y' to each side of the equation.

4x + 9y + -9y = 21 + -9y

Combine like terms: 9y + -9y = 0

4x + 0 = 21 + -9y

4x = 21 + -9y

Divide each side by '4'.

x = 5.25 + -2.25y

No need to simplify. :)

Answer Link

Otras preguntas

Which number line represents the solutions to the inequality 9x + 2 5 6x - 4?
What is the purpose of Safety Data Sheets? Why are these important when handling common food service chemicals? What information/components are generally includ
Name a point that is NOT coplanar with G, A, and B
please help me difference between of plant cell and animal cell write plz ​
Identify the figurative language and define it. His fingers were a blur as he typed his story.
Worked example3 is = 21 ​
Last month a factory produced 880 television sets. This month the the same factory produced 1210 television sets. The increase percentage in production from las
when designing a n experiment to see if bigfoot likes apples, which house would be your control group?​
Hanks pickup can travel 45 miles on 3 gallons of gas. How many gallons will Hanks pickup need to travel 30 miles?
The equation for line G is given by 5y = -2x - 20. Suppose line G is parallel to line R, and line E is perpendicular to line G. Point (-10,8) lies on both line