Question 1024397
Two numbers a & b
:Write an equation for each statement
:
 the sum of two is -1.
a + b = -1 
 when twice the first number and four times the second numbers are added, the sum is -10.
2a + 4b = -10
simplify, divide by 2, then subtract the 1st equation
a + 2b = -5
a + b = -1
------------ subtraction eliminates a, find b
0 + b = -4
b = -4
Find a using the 1st equation
a - 4 = -1
a = -1 + 4
a = 3
:
 what are the two numbers 3 & -4
:
:
You can check these solutions in the 2nd equation