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ipn [44]
4 years ago
11

Find the value of x if B is between A and C, AB=4x-9, BC= 3x+ 5, and AC=7

Mathematics
1 answer:
Otrada [13]4 years ago
4 0
AB = 4 x - 9
BC = 3 x + 5
AC = 7

B is in between A and C.  <u>So AB + BC = AC</u>

4x - 9 + 3 x + 5  =  7
7 x - 4 = 7              take -4 from LHS to the R H S (right hand side) it becomes +4
7 x = 7 + 4  = 11
x = 11/7    = 1.571

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So, the pending of this first line is -2, the reprical is -1/2. We change the sing and we have 1/2

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Step-by-step explanation:

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