2 times a number added to another number is 25. 3 times the first number minus the other number is 20.
Let the first number be x. Let the second number be y. We're given two equations:
(2 + 3)x + (1 - 1)y = 25 + 20
Simplifying, we get:
5x = 45
Typing this equation into the search engine, we get:
x = 9
To find y, we plug in x = 9 into equation (1) or (2). Let's choose equation (1):
2(9) + y = 25
y + 18 = 25
Typing this equation into our search engine, we get:
y = 7
So we have (x, y) = (9, 7)
Let's check our work for equation (2) to make sure this system works:
3(9) - 7 ? 20
27 - 7 ? 20
20 = 20 <-- Good, we match!
Let the first number be x. Let the second number be y. We're given two equations:
- 2x + y = 25
- 3x - y = 20
(2 + 3)x + (1 - 1)y = 25 + 20
Simplifying, we get:
5x = 45
Typing this equation into the search engine, we get:
x = 9
To find y, we plug in x = 9 into equation (1) or (2). Let's choose equation (1):
2(9) + y = 25
y + 18 = 25
Typing this equation into our search engine, we get:
y = 7
So we have (x, y) = (9, 7)
Let's check our work for equation (2) to make sure this system works:
3(9) - 7 ? 20
27 - 7 ? 20
20 = 20 <-- Good, we match!