Evaluate:
$7 x - 9 y + 3 - 3 x - 5 y + 8$

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Solution

Simplify the given expression
Given expression
$7 x - 9 y + 3 - 3 x - 5 y + 8$
$= (7 x - 3 x) - 9 y - 5 y + 3 + 8$
$= (7 - 3) x - (9 + 5) y + 11$
$= 4 x - 14 y + 11$
Hence, the expression, $(7 x - 9 y + 3 - 3 x - 5 y + 8)$ is simplified as $(4 x - 14 y + 11)$

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Similar questions

\frac{x}{7} = \frac{y}{3} = \frac{3 x + 5 y}{. . . . . . . . . .} = \frac{7 x - 9 y}{. . . . . . . . .}

\frac{a}{3} = \frac{b}{4} = \frac{c}{7} = \frac{a - 2 b + 3 c}{. . . . . . .} = \frac{. . . . . . . . . .}{6 - 8 + 14}

Question 5

The equation which can not be solved in integers is

(a) 5y - 3 = -18

(b) 3x - 9 = 0

(d) 9y + 8 = 4y - 7

7 x - 9 y + 3 - 3 x - 5 y + 8

7 x - 9 y + 3 - 3 x - 5 y + 8

(2 x - 5 y) (3 x + 7 y) (8 x - 9 y)

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