x = 7/5
5x3=4 2x8=2 6x3=3 1x7=7/40
The generalisation is that multiplication is Abelian (or commutative) for numbers.
If you're asking what x equals, it equals 5 because 5x3=15, and 15-2=13.
-5
5x3 = 320 x3 = 320/5 = 64 So x = cuberoot(64) = 4
103933.5
Commutivity of multiplication or the commutative property of multiplication.
2(10x6) 4(5x3)
Since 5x is a factor of both terms, divide it. 5x3 + 5x = 5x(x2 + 1)
5x3 = 45x Divide both sides by 5: x3 = 9x Divide both sides by x: x2 = 9 Square root both sides: x = 3
3x+5=20 x=5 since 5x3+5=20
y = 5x3 + 6 is a cubic equation, not a linear equation. Linear equations contain only terms of degree 0 (i.e. constants) and terms of degree 1.