Solve the equation. X × (1 − 49) = 56x + 79x = 211x-50% = 16 (x + 27) × 40% = 8

Solve the equation. X × (1 − 49) = 56x + 79x = 211x-50% = 16 (x + 27) × 40% = 8

（1）x×（1-49）=56，                59x=56，            59x×95=56×95，                 x=32；（2）x+79x=2，       169x=2， 169x×916=2×916，         x=98；（3）11x-50%=16 11x-50%+50%=16+50%，         11x=16.5，     11x÷11=16.5÷11，           x=1.5；（4）（x+27）×40%=8，（x+27）×40%÷40%=8÷40%，             x+27=20，          x+27-27=20-27，               x=1957．

Is 8x + 5x-2x = 11x an equation

This is an identity, not an equation

These two algebraic expressions are reduced to (1) 3x-8x-11x (2) 4ab-4a + ab-2a + 1

（1）3X-8X-11X
=-5x-11x
=-16x
（2）4ab-4a+ab-2a+1
=5ab-6a+1

Please solve the following equation 2x + 1.5x = 17.5

Original formula = 2x + 1.5x = 3.5x = 17.5
x=17.5/3.5=5
x=5