Use Subtraction
1. Subtract
x+2y=7
3x-2y=-3
-------------
4x+0y=4 SIMPLIFY 4x=4
2. DIVIDE
4x=4
x=1
Substitute that into either of the original equations to get x=1, y=3
I believe the answer is-
a) 80
b) 130
c) 250
Hi. Here it is!
I hope this help...
—> And the answer is letter A
Answer:
prime numbers are the natural numbers greater than one that are not products of two smaller natural numbers
Step-by-step explanation:
X+y=57
y=x+15
x+x+15=57
2x=42
x=21
y=21+15
y=36