Robert earned $10, which was 4 less than twice what Eric earned , How much money did Eric earn?

Mathematics

1 answer:

Kisachek [45]2 years ago

6 0

Answer:

Eric's earning is $7

Step-by-step explanation:

Given

Represent Robert's earnings with R and Eric's with E.

$R = 10\\R = 2E - 4$

Required

What is the value of E?

Substitute 10 for R in the second equation.

$10 = 2E - 4$

Solve for 2E

$2E = 10 + 4$

$2E = 14$

Solve for E

$E = 14/2$

$E = 7$

<em>Eric's earning is $7</em>

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