3. Use sys
3,4,5,6
a) 2z + 4 = 6z + 5z - 2
b) 4/3k + 3/2k-k= 8/3
c) 2x + 4 = -2x -1+7
Answers
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Step-by-step explanation:
a : 2z + 4 = 6z + 5z - 2
=> 2z+4+2 = 11z
=>6 = 11z - 2z
=>6 =9z
=> 6/9 = z
=> 2/3 =z
b : 4/3k+3/2k -k = 8/3 cm of 3,2 = 6
=> 8/6k + 9/6k - 6/6(k) = 16/6
=> 11k /6 = 16/6
=> 11k = 16
so 16/11 = k
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