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Helga [31]
3 years ago
14

Explain why this statement is true: 7a +4 – 2a = 7a + (-20)+4

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

This equation has one solution so given statement is true.

Step-by-step explanation:

7a +4 – 2a = 7a + (-20)+4

5a + 4 = 7a - 16

5a - 7a = -16 - 4

- 2a = - 20

a = 10

This equation has one solution so given statement is true.

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£940 is divided between gavin, jim & Krutika so that gavin gets twice as much as jim, and jim gets three times as much as kr
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Answer:

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Step-by-step explanation:

We can think of it as an equation system. Lets find out the equations.

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