3(t + r) + 4 (2t - 3r) – (2t - r)
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Answer:
OK its simple
Step-by-step explanation:
3(t+r)+4(2t-3r)-(2t-r)
3t+3r+8t-12r-2t+r
9t-8r
that's ur solution
as ( means to multiply the no. with the no's inside the bracket
the - will change the signs
== minus minus = plus
==plus plus= plus
== plus minus=minus
==minus plus =minus
add and subtract the similar no's
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