2 Answers

Matthew Gray · Answer 1 · 2022-07-23T14:34:14+0000

Answer:

a=10

Explanation:

Step 1: Simplify both sides of the equation.

11a−(4a−7)=77

11a+−1(4a−7)=77(Distribute the Negative Sign)

11a+−1(4a)+(−1)(−7)=77

11a+−4a+7=77

(11a+−4a)+(7)=77(Combine Like Terms)

7a+7=77

Step 2: Subtract 7 from both sides.

7a+7−7=77−7

7a=70

Step 3: Divide both sides by 7.

$\frac{7a} {7} = \frac{70} {7}$

Thus a = 10

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