Answer:
-2x-2y=-8
-4x-8y=-20
From the 1st eqn
Dividing through by 2
you have
-x-y=-4
Multiply through by -(minus)
x+y=4
x=4-y
Substitute into eqn 2
-4x-8y=-20
-4(4-y)-8y=-20
-16 + 4y - 8y = -20
-4y = -20 +16
-4y = -4
y= 1
Substitute into any of the other eqn's to get x
x= 4-y
x= 4-1
x=3
Ans
Step-by-step explanation:
Step-by-step explanation:
++++5
+++++++_2
1=false
true
false
false
It would be 5 tens + 4 tens = 9 tens
3x + 6
distribute the 3 to both of the places in the parentheses.
