1.

Simplify the following expressions.(a) 12a 8 17s 6+13a-7(c) 129y -8x 12y +10x-4(e) 15p-22p+4p+3p + 210(b) 28x + 17-3-2x+ 4x(d) 12a -22a + 5a+1- a

Answer»

a) 12a+13a-17s+8-13

= 25a-17s-5



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