bellemongeau bellemongeau

19-09-2016
Mathematics

contestada

solve the system of equations by substitution

y= 7x-10
y=-3

Respuesta :

nobillionaireNobley nobillionaireNobley

23-09-2016

y = 7x - 10 . . . (1)
y = -3 . . . (2)

Putting (2) into (1) gives:
-3 = 7x - 10
7x = -3 + 10q = 7
x = 7/7 = 1

Therefore, solution = (1, -3)

Answer Link

Otras preguntas

A car travels at an average speed of 50 km/h for 1.5 hours. How far did the car travel in km?

Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for the first term. -46, -45, -44, -4

Why was natural selection an important contribution to the theory of evolution? OIt proved that evolution is true. OIt explained how evolution works. OIt summar

What is the slope of the line containing (-3, 1) and (1, -2)? O A OB. O C. O D. 314 413 - 314 43

A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, wh

Given below is a word. Make 12 more words using alphabets used in it.

what is the factor each expression of x2 - 2x

Twenty Three more than a number is 68 . what is the number

A point is missing from the graph of the relation below. The relation is not a function. help please give right answer

Owen is offered a contract to join a professional basketball team. He accepts their offer. What is TRUE about this acceptance? A. Owen has offered his new team