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Seventh grade math exercise book (2) 5.2 Solution of linear equation (2) Answer please, as long as the fourth question of 1-4 is the process.
1.D

2. Equality Attribute 2 Equality Attribute 1 Equality Attribute 2

3. When 2x+ 10 is multiplied by 10, equation 2 (2x+10) = 5 (x-10)+1.

4.( 1)2( 1-x)= 2x(2)3/4y- 1 = 7(3)y+2/4-2y-3/6 = 0

2-2x = 2x 3/4y = 7+ 1 3(y+2)-2(2y-3)= 0

-2x-2x =-2 ^ 3/4y = 8 ^ 3y+6-4y+6 = 0

-4x=-2 y=32/3 3y-4y=0-6-6

x= 1/2 -y=- 12

y= 12

This is?