5p + 3q = 9 ;2p +3q = 12
Answers
Answer:
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Step-by-step explanation:
SOLVE FOR P, Q
5p+3q=9,2p+3q=12
5p+3q=9,2p+3q=12
5p+3q=9,2p+3q=12
5p+3q=9,2p+3q=12
pp
5p+3q=9
5p+3q=9
3q
5p=-3q+9
5p=−3q+9
5
p=\frac{1}{5}\left(-3q+9\right)
p=
5
1
(−3q+9)
\frac{1}{5}=0.2
-3q+9
p=-\frac{3}{5}q+\frac{9}{5}
p=−
5
3
q+
5
9
\frac{-3q+9}{5}
p2p+3q=12
2\left(-\frac{3}{5}q+\frac{9}{5}\right)+3q=12
2(−
5
3
q+
5
9
)+3q=12
2\frac{-3q+9}{5}
-\frac{6}{5}q+\frac{18}{5}+3q=12
−
5
6
q+
5
18
+3q=12
-\frac{6q}{5}
3q
\frac{9}{5}q+\frac{18}{5}=12
5
9
q+
5
18
=12
\frac{18}{5}=3.6
\frac{9}{5}q=\frac{42}{5}
5
9
q=
5
42
\frac{9}{5}=1.8
q=\frac{14}{3}
q=
3
14
\frac{14}{3}\approx 4.666666667
qp=-\frac{3}{5}q+\frac{9}{5}
p
p=-\frac{3}{5}\times \left(\frac{14}{3}\right)+\frac{9}{5}
p=−
5
3
×(
3
14
)+
5
9
-\frac{3}{5}=-0.6
\frac{14}{3}\approx 4.666666667
p=\frac{-14+9}{5}
p=
5
−14+9
\frac{9}{5}=1.8
-\frac{14}{5}=-2.8
p=-1
p=−1
p=-1,q=\frac{14}{3}
p=−1,q=
3
14