3 years ago

Can someone solve a - 3 over 7 s = -8 and a + 24 = -15 STEP BY STEP PLEASE.

Mathematics

2 answers:

Ainat [17]3 years ago

8 0

Answer:

a=-39; s=0.75

Step-by-step explanation:

Solve the System of Equations by Substitution.

First, solve one of the equations for a variable. I'll do the 2nd one because it only has one variable.

a+24=-15 -------> a=-39

Now we know what a is just plug it back into the other equation and get s.

$\frac{a-3}{7s} =-8$

$\frac{-39-3}{7s} =-8$

$\frac{-42}{7s} =-8$

Switch the -8 and 7s

$\frac{-42}{-8} =7s$

Simplify the fraction

5.25=7s

Divide by 7 to isolate the s

0.75=s

TiliK225 [7]3 years ago

6 0

Answer:

2)a+24=-15

a=-15-24

a=-39

Step-by-step explanation:

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