7m−2=5m+6 solve this equation in transposition method class 7 with step by step explanation it's urgent
Answers
Factoring 7m2-5m-6
The first term is, 7m2 its coefficient is 7 .
The middle term is, -5m its coefficient is -5 .
The last term, "the constant", is -6
Step-1 : Multiply the coefficient of the first term by the constant 7 • -6 = -42
Step-2 : Find two factors of -42 whose sum equals the coefficient of the middle term, which is -5 .
-42 + 1 = -41
-21 + 2 = -19
-14 + 3 = -11
-7 + 6 = -1
-6 + 7 = 1
-3 + 14 = 11
-2 + 21 = 19
-1 + 42 = 41
Observation : No two such factors can be found !!
answer = 7m2 - 5m - 6
Step-by-step explanation:
7m-2=5m+6
add 2 on both sides,
7m-2+2=5m+6+2
7m=5m+8
minus 5m on both sides,
7m-5m=5m-5m+8
2m=8
divide by 2 on both sides,
m=4