xbox360isaac
xbox360isaac
09-11-2020
Mathematics
contestada
Help with this substitution
Respuesta :
lilstefy
lilstefy
09-11-2020
Since x = 3y + 15, plug that into the other equation.
5x + 2y = 7
5(3y + 15) + 2y = 7
15y + 75 + 2y = 7
17y = 7-75
17y = -68
y = -4
I hope this helps. (x = 3 and y = -4)
Answer Link
VER TODAS LAS RESPUESTAS ( 21+ )
Otras preguntas
On a movie set, an archway is modeled by the equation y = -0.5x2 + 3x, where y is the height in feet and x is the horizontal distance in feet. A laser is direct
What number is 76.8% of 42.5
How are the four component systems of the earth system connected? They are only connected by internal heat energy from the earth. Both energy and matter are co
20. Which one of the following phrases best fits the productivity equation? A. Satisfied employees, with good supervision, achieving or surpassing thei
Simplify completely 14x^5y^4/21x^3y^2/7x^3y. If you can solve this can you explain how you solved to help me understand please...This is 9th grade algebra just
do you agree that a quadratic equation has at most two solution? justify your answer and give example.
2x -3y =2 x = 6y - 5
Find f(x) and g(x) so the function can be expressed as y = f(g(x)). y =2/x^(2) +9
what is another term for a texture where some crystals are visible to the unaided eye While others are not
wich statement correctly relates science and its influence on society
