What's the difference between minus 0.5 and minus 6 and one-half and the sum of two fifths?

If the solution of MX + 6 = 14 is x = 2, find the value of M2 - 1

Take x = 2 into the equation: 2m + 6 = 14 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2m + 6-6 = 14-6 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp

What is 15 out of 9 equal to 25 out of 9

Mathematical answer group answers for you
15/9=5/3=25/15
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Equations 1 / 3x + 1 / 4Y = 5,1 / 3y-1 / 2x = 1

x=6
y=12

Can 237 △ (18.2 △ 0.5-12.7) be simplified? If so, write the formula

No
237÷(18.2÷0.5-12.7)
=237÷(36.4-12.7)
=237÷23.7
=10

The perimeter of an isosceles triangle is 45cm, and the length of one side accounts for 2 / 9 of the perimeter. How many cm are the three sides of the triangle

45 * 2 / 9 = 10cm bottom edge
(45-10) / 2 = 17.5cm waist

Simple calculation of 36 times 24 + 18 times 52

36X24+18X52
=18X2X24+18X52
=18X（48+52）
=18X100
=1800

Extend Ba, AC and CB of triangle ABC by 1, 2 and 3 times to D, e and F. the area of triangle ABC is known to be 1. Calculate the area of triangle def

Because BF = 3bC, BD = 2Ab, ad = AB, AE = 3aC, AC = CE, CF = 4bc, area of triangle DBF / area of triangle ABC = 1 / 2 * BF * bdsinfbd / 1 / 2 * AB * bcsinabc = 6sinfbd / 1 * sinabc, because angle ABC + angle FBD = 180 degrees, so sinfbd = sinabc, area of triangle ABC = 1, so

1 / 3 x-50% = 0.5-1 / 3 x solution
1 / 3 x-50% = 0.5-1 / 3 x
solve equations

A triangle glass, the bottom is 12.5dm, the height is 7.8dm, the price per square meter is 68 yuan, buy this glass to use how many yuan?

12.5 × 7.8 △ 2 △ 100 × 68, = 97.5 △ 2 △ 100 × 68, = 48.75 △ 100 × 68, = 33.15 yuan; answer: it costs 33.15 yuan to buy this glass

What's the difference between minus 0.5 and minus 6 and one-half and the sum of two fifths?