mehaaa164
mehaaa164
05-10-2020
Mathematics
contestada
linear equations
a+2b=-1
2a+3b=23
Respuesta :
RachelMarrons
RachelMarrons
05-10-2020
Answer:
.2a + 4b = -2
2a + 3b = 23
We
subtr
act
.
.
0
+
b
=
-
2
5
a + (2×-25) = -1
a - 50 = -1
a = -1+50
a
=
4
9
.
a
=
4
9
b
=
-
2
5
.
Step-by-step explanation:
provin
g
my
an
swer
.
a + 2b = -1
49 + (2×-25) = -1
49 - 50 = -1
2a + 3b = 23
(2×49) + (3×-25) = 23
98 + (-75) = 23
98 - 75 = 23
Answer Link
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