Justify each step in the equation solution below with either a property of real numbers (associative, commutative, distributive) or a property of equality (addition or multiplication). 5(x+2)=30 Step 1: 5x+10=30 Justification: Justification Step 2: 5x+10+-10 = 30+-10 5x= 20 Step 3: Justification: 5 x 20 5 5 x=4

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

answer: y=0 if that is what u r looking for

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.