Solve 3[-x + (2 x + 1)] = X-1.

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9