who will solve these 4 problems I will mark them as brain list ...... PLEASE SOLVE quick
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11: 15(x+1) + 4(x+3) = 2(7+x)
=> 15x + 15 + 4x + 12 = 14 + 2x
=> 15x + 4x - 2x = 14 - 15 - 12
=> 17x = -13
=> x = -13/17
12: 3(5z-7) + 2(9z - 11) = 4(8z-7) - 111
=> 15z - 21 + 18z - 22 = 32z - 28 - 111
=> 33z - 43 = 32z - 139
=> 33z - 32z = -139 + 43
=> z = -96
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Answer:
15x-15+4x+12=2(7+x)
19x-3=14+2x
19x-2x=14+3
17x=17
x=17upon u
x= 1
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