`(-7) + (-9) + 12 + (-16) = ? `

Fill in the blanks : (i) (-3) + (-9) = ……. (ii) (-7) + (-8) = ….. (iii) (-9) + 16 = ….. (iv) (-13) + 25 = ….. (v) 8 + (-17) = ……….. (vi) 2 + (-12) = ……….

Simplify : (i) 8 x (-13) + 8 x 9 (ii) (-12) x 7 + (-12) x (-4) (iii) 9 x (-16) + (-12) x (-16) (iv) 10 x (-31) + 10 x (-9)

Add(7)/(9) and (-12)/(9)

Using matrix method show that the system of linear equations 3x - 4y = 7 and 9x - 12y = 16 is inconsistent.

5, 16, 6, 16, 7, 16, 9 (a) 9 (b) 7 (c) 6 (d) None of these

Find the using distributivity {(9)/(16) xx (4)/(12) } + {(9)/(16)xx(-3)/(9)}