-133=7(1+5m)
Multiple the bracket by 7
-133=7(1)+7(5m)
-133=7+35m
Move +7 to the other side. Sign changes from +7 to -7.
-133-7=7-7+35m
-140=35m
Divide by 35
-140/35=35/35m
m=-4
Answer: m=-4
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