Solve 3x - 2y = 10 and x + 3y = 7 simultaneously
...Solve 3x - 2y = 10 and x + 3y = 7 simultaneously
x = -4 and y = 1
x = -1 and y = -4
x = 1 and y = 4
x = 4 and y = 1
Correct answer is D
3x - 2y = 10 - - x 3
x + 3y = 7 ---x 2
------------------------
9x - 6y = 30
2x + 6y = 14
-------------------------
11x114411
x = 4
From x + 3y = 7
3y = 7 - 4
3y3 = 33
y = 1
Each interior angle of a regular polygon is 108°. How many sides has it? ...
Find the gradient of the line passing through the points (-2, 0) and (0, -4)...
Find the value of x if √2x+√2 = 1x−√2 ...
Find the distance between two towns P(45°N, 30°W) and Q(15°S, 30°W) if the radius of...
A right pyramid is on a square base of side 4cm. The slanting side of the pyramid is 2√3 c...