What is (7a-3b)-(4a+b+a-3b) ?

The solution to (7a-3b)-(4a+b+a-3b) is 2a-b

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simplify (7a-3b)-(4a+b+a-3b)

simplify

(7 a - 3 b) - (4 a + b + a - 3 b)

2 a - b

Solution steps

(7 a - 3 b) - (4 a + b + a - 3 b)

Apply rule:

(a) = a

(7 a - 3 b) = 7 a - 3 b

= 7 a - 3 b - (4 a + b + a - 3 b)

Simplify

- (4 a + b + a - 3 b) : - 5 a + 2 b

= 7 a - 3 b - 5 a + 2 b

Group like terms

= 7 a - 5 a - 3 b + 2 b

Add similar elements:

7 a - 5 a = 2 a

= 2 a - 3 b + 2 b

Add similar elements:

- 3 b + 2 b = - b

= 2 a - b

- (6)^{3}

(2 x y + \frac{1}{4} y^{2})^{2}

\frac{5 a ^{2} - 5}{a + 1}

\frac{3 x ^{2} - 2 x - 8}{3 x ^{2} - 12}

\frac{12 3}{2}