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3 years ago

Solve two-step equations 2 = 4s + –10 i need it ASAP

Mathematics

2 answers:

Misha Larkins [42]3 years ago

5 0

Answer:

s=3

Step-by-step explanation:

simplify the equation to the form, which is simple to understand

and then move all terms containing s to the left and all other terms to the right!

saveliy_v [14]3 years ago

4 0

Answer:

s=3

Step-by-step explanation:

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Answer: Maria has 10 bills of 5€ and 10 bills of 10€.

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Step-by-step explanation:

Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.

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$\left \{ {{f+t=20} \atop {5f+10t=10f+5t}} \right.$

Use the Substitution method to solve the system of equations:

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2. Substitute the equation obtained into the second equation and solve for "t".

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$5(20-t)+10t=10(20-t)+5t\\\\100-5t+10t=200-10t+5t\\\\20t-10t=100\\\\t=\frac{100}{10}\\\\t=10$

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