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balandron [24]
3 years ago
6

Find the value of x that makes each equation true.

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0
1.\\\\ 3x-10=2\\3x=2+10\\3x=12\ \ /:3\\ x=\frac{12}{3}\\x=4\\\\2.\\\\ 8x-10=x+11\\8x-x=11+10\\7x=21\ \ /:7\\x=\frac{21}{7}\\x=7

3.\\\\ 5x-7=7x-17\\5x-7x=-17+7\\-2x=-10\ \ /:(-2)\\x= \frac{-10}{-2}\\x=5

4.\\\\ 3x+9=44-2x\\3x+2x=44-9\\5x=35\ \ /:5\\x=\frac{35}{7}\\x=5\\\\5. \\\\3x+6=x+2\\3x-x=2-6\\2x=-4\ \ /:2\\x=-\frac{4}{2}\\x=-2


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