What is the answer to 4a+3a-8=2a+a+4 ?

The answer to 4a+3a-8=2a+a+4 is a=3

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4a+3a-8=2a+a+4

4 a + 3 a - 8 = 2 a + a + 4

a = 3

Solution steps

4 a + 3 a - 8 = 2 a + a + 4

Add similar elements:

4 a + 3 a = 7 a

7 a - 8 = 2 a + a + 4

Add similar elements:

2 a + a = 3 a

7 a - 8 = 3 a + 4

Move

8

to the right side

7 a = 3 a + 12

Move

3 a

to the left side

4 a = 12

Divide both sides by

4

a = 3

y, y + 1 = x

6 y = 30

100 - 10 x = 0

2 (x + 6) = 4

x, y [n] = x [n] + x [n + 2]